Nexus 6 stuck in google screen - Nexus 6 Q&A, Help & Troubleshooting

Hello, I have read about this problem but I still have some questions.
The phone was stock, not rooted or anything, a friend of mine tried to uptate the phone via OTA with only 8 percent of battery so now the phone is stuck in google screen.
I read about this here http://forum.xda-developers.com/showpost.php?p=56938530&postcount=1 about fastboot commands but the problem is that I have not never checked the USB debugging mode.
It shows "Device is locked" and "Status code:2"
Thanks, I hope it works again.

You don't need debugging enabled to use fastboot. That's only for issuing commands while in the OS.

Nothing you can do if "Enable OEM Unlock" is not selected. Needs to be sent to Google / Motorola.

danarama said:
Nothing you can do if "Enable OEM Unlock" is not selected. Needs to be sent to Google / Motorola.
Click to expand...
Click to collapse
Thanks, but wait, I'm just wondering, I have read that every nexus has its OEM thing unlocked from the beginning, so how you asumme it is off?

espinal123 said:
Thanks, but wait, I'm just wondering, I have read that every nexus has its OEM thing unlocked from the beginning, so how you asumme it is off?
Click to expand...
Click to collapse
Almost correct. On 5.0, it seemed to work if you unlock before booting device first time without checking the setting. But won't work since 5.1
Sorry, I assumed you'd actually tried to unlock the bootloader. If you haven't, you probably should try. That will tell you once and for all whether you need to return it or not.

danarama said:
Almost correct. On 5.0, it seemed to work if you unlock before booting device first time without checking the setting. But won't work since 5.1
Sorry, I assumed you'd actually tried to unlock the bootloader. If you haven't, you probably should try. That will tell you once and for all whether you need to return it or not.
Click to expand...
Click to collapse
Thanks, So i tried to unlock it through the NRT nexus root toolkit and it says this:
fastboot devices
ZX1G22KCPZ fastboot
Connectivity Status: Fastboot Device Connected
fastboot oem unlock
Click to expand...
Click to collapse
Then it asks me to reboot and enable debugging thing, so I cannot, do you thing is unlock? Now I'm gonna try to "flash stock + unroot" on this program, I'll let you know.
Thanks.

graydiggy said:
You don't need debugging enabled to use fastboot. That's only for issuing commands while in the OS.
Click to expand...
Click to collapse
Thanks, but this guide says that you have to turn the debuggin mode on. I tried to flash, (assuming OEM is on) through the Nexus tool kit but it gave me a lot of fails.

@Evolution_Tech
Aren't you more versed in this area? Maybe you can lend a hand?

graydiggy said:
@Evolution_Tech
Aren't you more versed in this area? Maybe you can lend a hand?
Click to expand...
Click to collapse
USB debugging shouldn't matter, what matters is having the "allow OEM unlock" setting enabled.

Evolution_Tech said:
USB debugging shouldn't matter, what matters is having the "allow OEM unlock" setting enabled.
Click to expand...
Click to collapse
He is trying to use toolkit. It requires USB debug enabled as it uses both adb and fastboot. Needs to forget the toolkit and go to manual fastboot.

prdog1 said:
He is trying to use toolkit. It requires USB debug enabled as it uses both adb and fastboot. Needs to forget the toolkit and go to manual fastboot.
Click to expand...
Click to collapse
+1

That's what I was thinking. However I'm not as familiar with manual fastboot. I also don't have a computer at hand at the moment so I can't quickly get all the commands for the OP.
---------- Post added at 01:45 PM ---------- Previous post was at 01:43 PM ----------
Since it seems that there is no OEM unlock on the device, would he be able to push a factory image to the phone and install it like a regular update through recovery?

Evolution_Tech said:
USB debugging shouldn't matter, what matters is having the "allow OEM unlock" setting enabled.
Click to expand...
Click to collapse
OEM seems that is Unlock, the toolkit says this.
fastboot devices
ZX1G22KCPZ fastboot
Connectivity Status: Fastboot Device Connected
fastboot oem unlock
Click to expand...
Click to collapse
Now, that toolkit doesn´t work, so I'm trying to use fasboot thing. But it seems that I need debbuggin thing On, I'm using this guide http://forum.xda-developers.com/showpost.php?p=56938530&postcount=1 I don't know how to do this things I just do what the guide says.
So the big question is how can I flash wihout usb debugging thing enabled.
Thanks :good:

espinal123 said:
[/COLOR]Since it seems that there is no OEM unlock on the device, would he be able to push a factory image to the phone and install it like a regular update through recovery?
Click to expand...
Click to collapse
OEM seems that is Unlock, the toolkit says this.
Now, that toolkit doesn´t work, so I'm trying to use fasboot thing. But it seems that I need debbuggin thing On, I'm using this guide http://forum.xda-developers.com/showpost.php?p=56938530&postcount=1 I don't know how to do this things I just do what the guide says.
So the big question is how can I flash wihout usb enabled.
Thanks :good:[/QUOTE]
Flashing via fastboot does not need USB debugging enabled. If your bootloader IS unlocked, you are good to go.

If I'm not mistaken debugging is for inside the OS only... It's been like that for my Samsung devices. It's so your computer can push a command to the phone while it's completely booted. Don't worry about the toolkit from this point. I'm sorry I can't be of more assistance. Just give us a little more time and we shall get you sorted. Hopefully

Have you ever just tried entering recovery and doing a factory reset?
---------- Post added at 03:21 PM ---------- Previous post was at 03:20 PM ----------
Otherwise, from fastboot, just try: fastboot format cache

Evolution_Tech said:
Have you ever just tried entering recovery and doing a factory reset?
---------- Post added at 03:21 PM ---------- Previous post was at 03:20 PM ----------
Otherwise, from fastboot, just try: fastboot format cache
Click to expand...
Click to collapse
I cannot enter to recovery, It appears a dead android and a warning sign on his chest. But I already did through fastboot command as you say, but I don't know how to flash in fastboot i cannot find the proper guide.
I already did the command "fastboot devices" and it recognizes my device. I tried to put a new recovery but it wont let me.

espinal123 said:
I cannot enter to recovery, It appears a dead android and a warning sign on his chest. But I already did through fastboot command as you say, but I don't know how to flash in fastboot i cannot find the proper guide.
I already did the command "fastboot devices" and it recognizes my device. I tried to put a new recovery but it wont let me.
Click to expand...
Click to collapse
OK, first, when the "dead android" appears, hold power and press volume up once. That is the normal procedure for entering stock recovery.
Second, why can you not flash a custom recovery? I have a strong suspicion that your bootloader is locked and there is some communication issues here. Go to stock recovery and do a factory data reset.

Evolution_Tech said:
OK, first, when the "dead android" appears, hold power and press volume up once. That is the normal procedure for entering stock recovery.
Second, why can you not flash a custom recovery? I have a strong suspicion that your bootloader is locked and there is some communication issues here. Go to stock recovery and do a factory data reset.
Click to expand...
Click to collapse
Thanks, I cannot enter recovery mode as you said, I also cannot "fastboot oem unlock". Here's one picture.
At least it recognizes my device.(as youll see in the picture)
Does it mean my oem thing is blocked? And I cannot do anything?
If so, what about this http://forum.xda-developers.com/nexus-6/general/fix-fix-qhusbbulk-cm12-t3059518

espinal123 said:
Thanks, I cannot enter recovery mode as you said, I also cannot "fastboot oem unlock". Here's one picture.
It recognizes my device, does it mean my oem thing is blocked? And I cannot do anything?
If so, what about this http://forum.xda-developers.com/nexus-6/general/fix-fix-qhusbbulk-cm12-t3059518
Click to expand...
Click to collapse
No, that fix does not apply here.
I'm going to try this once more.
Disconnect from your PC.
Power off your nexus.
Hold power+volume down to enter bootloader.
Once in bootloader, use volume down to select recovery mode. Press power to select it.
Once dead android appears, hold power button and press volume up once.
Once in recovery, use volume down to highlight " wipe data/factory reset "
Press power to select.
Reboot when prompted.
If the device boots up, wait patiently for the reset to completely finish. It may take as long as 20 minutes or more.
If this processes doesn't work, you have one option, RMA.

Related

[Q] Verizon Developers Edition help

Hoping somebody can help me figure out what is going on with my phone. Sorry for the long post, but hoping folks with custom rom and flashing experience will read on to help.
I have the Verizon Developer Edition. I have unlocked the bootloader, installed TWRP 2.7, and rooted the phone. I have never installed any custom ROMs on the phone. I had done custom ROMs on my GS3, but I just wanted this phone rooted, and maybe mess around with a few ROMs down the road.
I followed this video from RootJunky when I originally installed TWRP.
So a few weeks ago I kept getting the OTA message to upgrade to the latest kitkat. I decided to flash back to the original recovery so I could do the upgrade. I contacted RootJunky on his youtube channel and he provided a link to the stock recovery and I flashed it using the same video and his linked file.
After flashing the stock recovery, when I was in bootloader mode, I scrolled down to "recovery" and selected it. It would not go into recovery. It just stays in a bootloop. I went back and forth with RootJunky a few times trying to resolve this, but I got no response to my last few comments.
I can get the phone back into bootloader mode by holding the volume up/dwn and power buttons, if I time it correctly during the bootloop. When in bootloader mode, I can select "Normal Powerup" option and the phone will boot up and function properly. But, if I shut the phone down, I can't turn the device on with the power button, otherwise it will just bootloop. I have to get into bootloader mode, then select "Normal Powerup" to get the phone to work.
Once back in the phone, my USB debugging option is unchecked. I can recheck it, open a command prompt, and do a "adb devices" and it shows it connected. But if I do a "adb reboot bootloader" from the command prompt it will bootloop.
When I get into bootloader mode manually, when I connect it to the computer, and do a "adb devices", it doesn't show as connected, as I think the USB debugging option is getting toggled off somehow, so I can't connect or flash anything to the phone at this point.
One thing I see, in the video @ 4:50, he says you need to be at "status code 1" to flash recoveries. I am/was at status code 3. Not sure if that is why I am having this issue, or how to get this changed.
Any help would be greatly appreciated. I can use the phone just fine, but at this point, I would just like to be able to do a full restore to stock, upgrade to 4.4.4, keep the unlocked bootloader, and root the phone. No custom ROM.
THANKS!
08G8V8 said:
Hoping somebody can help me figure out what is going on with my phone. Sorry for the long post, but hoping folks with custom rom and flashing experience will read on to help.
I have the Verizon Developer Edition. I have unlocked the bootloader, installed TWRP 2.7, and rooted the phone. I have never installed any custom ROMs on the phone. I had done custom ROMs on my GS3, but I just wanted this phone rooted, and maybe mess around with a few ROMs down the road.
I followed this video from RootJunky when I originally installed TWRP.
So a few weeks ago I kept getting the OTA message to upgrade to the latest kitkat. I decided to flash back to the original recovery so I could do the upgrade. I contacted RootJunky on his youtube channel and he provided a link to the stock recovery and I flashed it using the same video and his linked file.
After flashing the stock recovery, when I was in bootloader mode, I scrolled down to "recovery" and selected it. It would not go into recovery. It just stays in a bootloop. I went back and forth with RootJunky a few times trying to resolve this, but I got no response to my last few comments.
I can get the phone back into bootloader mode by holding the volume up/dwn and power buttons, if I time it correctly during the bootloop. When in bootloader mode, I can select "Normal Powerup" option and the phone will boot up and function properly. But, if I shut the phone down, I can't turn the device on with the power button, otherwise it will just bootloop. I have to get into bootloader mode, then select "Normal Powerup" to get the phone to work.
Once back in the phone, my USB debugging option is unchecked. I can recheck it, open a command prompt, and do a "adb devices" and it shows it connected. But if I do a "adb reboot bootloader" from the command prompt it will bootloop.
When I get into bootloader mode manually, when I connect it to the computer, and do a "adb devices", it doesn't show as connected, as I think the USB debugging option is getting toggled off somehow, so I can't connect or flash anything to the phone at this point.
One thing I see, in the video @ 4:50, he says you need to be at "status code 1" to flash recoveries. I am/was at status code 3. Not sure if that is why I am having this issue, or how to get this changed.
Any help would be greatly appreciated. I can use the phone just fine, but at this point, I would just like to be able to do a full restore to stock, upgrade to 4.4.4, keep the unlocked bootloader, and root the phone. No custom ROM.
THANKS!
Click to expand...
Click to collapse
First, Status code 3 is normal - that indicates an unlocked bootloader.
You should be able to use the 4.4.4 FXZ to flash back to 100% stock. Afterwards, you can flash TWRP, and re-root. Use the latest TWRP from here: http://techerrata.com/browse/twrp2/ghost
The important thing about TWRP is that immediately after flashing it, you have to "fastboot reboot-bootloader" and immediately boot into recovery - otherwise it doesn't 'stick'. We don't know why, but as long as you do it that way, you will be fine.
Here is the link for the 4.4.4 FXZ: http://forum.xda-developers.com/moto-x/general/fxz-moto-x-4-4-4-212-55-26-t2827307
If you follow the instructions, you will be on stock, rooted 4.4.4 in less than 20 minutes.
Good Luck, and let me know if you need additional assistance :good:
Also, please remember to post your questions to Q&A - not General. Don't worry as I have already requested that the Mods move it to the appropriate sub-forum.
EDIT: The problem I see with "rootjunky"s video is that first, he advises that "Status code 1" is required to flash recovery -- this is incorrect. Status code 3 works fine for custom recovery.
Additionally, he did not "fastboot reboot-bootloader" before booting into recovery. This is necessary. I'm not sure why he left that step out....likely he already had custom recovery flashed when he made the video.
Thanks for the quick response. Sorry about posting in the wrong section. I should have known better.....
I will look at this, but probably won't do it until after work tomorrow. I will post back tomorrow, hopefully with success.
Thanks!
I saw your edit to your post. I did the reboot boot loader step when I originally flashed twrp. I can't remember where I saw it, but I remember reading it and doing it.
The phone was running fine with twrp installed for a few months. The problem I am having now happened after flashing the stock recovery back onto the phone.
Do you recommend the RSD Flasher or House of Moto method to flash this FXZ?
08G8V8 said:
I saw your edit to your post. I did the reboot boot loader step when I originally flashed twrp. I can't remember where I saw it, but I remember reading it and doing it.
The phone was running fine with twrp installed for a few months. The problem I am having now happened after flashing the stock recovery back onto the phone.
Do you recommend the RSD Flasher or House of Moto method to flash this FXZ?
Click to expand...
Click to collapse
Either will work fine. If you don't care about keeping your data, you can use RSD Lite (will wipe everything). If you use one of the tools in the thread I linked you to, make absolutely sure you follow the instructions -- you can't have any spaces in any folder-names. If you use RSD Lite, you just select the zip file and flash (no worries about directory structure).
Ok, I just assumed those were the methods to flash it. I will look into the RSD Lite method, as if don't mind wiping the data.
I just watched a quick video on YouTube about using RSD Lite, and they state you must reboot the boot loader and do the flash in fastboot. I can't reboot into the bootloader from the command prompt, as it goes into the boot loop. I can get into fastboot manually, but when connecting to the computer it doesn't recognize it since the USB debugging option keeps getting reset on me.
Am I missing something? I don't see how I can flash this.
08G8V8 said:
I just watched a quick video on YouTube about using RSD Lite, and they state you must reboot the boot loader and do the flash in fastboot. I can't reboot into the bootloader from the command prompt, as it goes into the boot loop. I can get into fastboot manually, but when connecting to the computer it doesn't recognize it since the USB debugging option keeps getting reset on me.
Am I missing something? I don't see how I can flash this.
Click to expand...
Click to collapse
So you are telling me that when you type "adb reboot bootloader" (if usb debugging is enabled) or "fastboot reboot-bootloader" (if usb debugging is not enabled) it doesn't take you to the "AP Fastboot Mode" screen?
samwathegreat said:
So you are telling me that when you type "adb reboot bootloader" (if usb debugging is enabled) or "fastboot reboot-bootloader" (if usb debugging is not enabled) it doesn't take you to the "AP Fastboot Mode" screen?
Click to expand...
Click to collapse
Sorry, the "adb reboot bootloader" sends me into the bootloop.
I hadn't tried the "fastboot reboot bootloader" or "fastboot reboot-bootloader". Now when I try that, with USB debugging checked I just get "<waiting for device>" It does nothing.
What about turning off the device. Then holding power button and volume down at the same time. Does it take you to the bootloader screen like it should?
It sounds to me like when you were attempting you flash your stock recovery back, you flashed it to the wrong partition. I've seen another member do this....
He accidentally typed "fastboot flash bootloader stockrecoveryfile.img"
That would cause the issues you are describing... I might have a way to fix it if you are currently still rooted and able to access adb...
Travisdroidx2 said:
What about turning off the device. Then holding power button and volume down at the same time. Does it take you to the bootloader screen like it should?
Click to expand...
Click to collapse
Yes, I can manually get into bootloader, but it keeps toggling my USB debugging option, so when I connect it to the computer, it doesn't see it.
08G8V8 said:
Yes, I can manually get into bootloader, but it keeps toggling my USB debugging option, so when I connect it to the computer, it doesn't see it.
Click to expand...
Click to collapse
USB debugging isn't used in the bootloader, and adb isn't used for fastboot mode... I'm very confused by what you are saying...
Once you are in the boot loader screen does "fastboot devices" recognize your device?
samwathegreat said:
It sounds to me like when you were attempting you flash your stock recovery back, you flashed it to the wrong partition. I've seen another member do this....
He accidentally typed "fastboot flash bootloader stockrecoveryfile.img"
That would cause the issues you are describing... I might have a way to fix it if you are currently still rooted and able to access adb...
Click to expand...
Click to collapse
No, I typed "fastboot flash recovery stockrecoveryfile.img"
I did just like originally when flashing TWRP, just replaced the file in the command line.
I am still rooted.
samwathegreat said:
USB debugging isn't used in the bootloader, and adb isn't used for fastboot mode... I'm very confused by what you are saying...
Click to expand...
Click to collapse
I can get into fastboot with the phone powered off, holding the volume UP/DWN and PWR. But when connected to the computer it isn't recognized.
Sorry, but I am confused as well. I am just going off what I have seen in RootJunky's videos. In this video, https://www.youtube.com/watch?v=1LkuLb8hV6Q#t=285 at 4:44, after he does the "adb reboot bootloader" he says the device is now in "bootloader mode" which is what I am talking about, but I guess is actually Fastboot Mode. This is the same mode I am talking about getting into from the device powered off holding the volume UP/DWN and PWR buttons, but going in this way doesn't get recognized by the computer.
Travisdroidx2 said:
Once you are in the boot loader screen does "fastboot devices" recognize your device?
Click to expand...
Click to collapse
YES it does! Thanks. I kept trying "adb devices", and when it wasn't recognizing it, I figured it wasn't connected. I wasn't doing "fastboot devices". But, my USB debugging still was getting unchecked after getting back into the phone.
So with it recognizing my device in fastboot mode I should be able to go ahead with the RSD Lite flashing?
08G8V8 said:
No, I typed "fastboot flash recovery stockrecoveryfile.img"
I did just like originally when flashing TWRP, just replaced the file in the command line.
I am still rooted.
I can get into fastboot with the phone powered off, holding the volume UP/DWN and PWR. But when connected to the computer it isn't recognized.
Sorry, but I am confused as well. I am just going off what I have seen in RootJunky's videos. In this video, https://www.youtube.com/watch?v=1LkuLb8hV6Q#t=285 at 4:44, after he does the "adb reboot bootloader" he says the device is now in "bootloader mode" which is what I am talking about, but I guess is actually Fastboot Mode. This is the same mode I am talking about getting into from the device powered off holding the volume UP/DWN and PWR buttons, but going in this way doesn't get recognized by the computer.
Click to expand...
Click to collapse
OK, glad you didn't flash to bootloader. That is tricky to fix...but I've dealt with people who have done it before.
Try another PC...or re-install the drivers. Also, DO NOT use a usb 3.0 port, always use 2.0.
Bootloader = AP fastboot mode. They are one and the same. Try to get it recognized with "fastboot devices", on any PC. If you can get to that point, you can flash back to stock and recover everything. The FXZ can actually FIX a corrupted or damaged filesystem. It replaces all the relevant partitions.
Remember you do NOT use adb or usb debugging. They have nothing to do with fastboot.
---------- Post added at 09:10 PM ---------- Previous post was at 09:09 PM ----------
08G8V8 said:
YES it does! Thanks. I kept trying "adb devices", and when it wasn't recognizing it, I figured it wasn't connected. I wasn't doing "fastboot devices". But, my USB debugging still was getting unchecked after getting back into the phone.
So with it recognizing my device in fastboot mode I should be able to go ahead with the RSD Lite flashing?
Click to expand...
Click to collapse
YES!!!!
It seems you were confusing adb and fastboot. As long as "fastboot devices" recognizes your device, SO WILL RSD LITE!!!
Now follow my initial instrucitons, and you will be up and running in no time...
Thanks guys! I am going to do this tomorrow, but I feel pretty good that it is going to work.
Yes, I got VERY confused, and definitely need to go study up some more. I thought I had it, but obviously not.
Will report back tomorrow.
Happy to help
Absolutely get the Dev Edition for the same price. While Safestrap is out for other Galaxy devices with locked bootloaders (not sure if the S5 got SS yet) it allows customs Roms....but not kernel changes. With a Dev edition, there may be less development, but I'm sure there will still be some development out there.

New Nexus 6 stuck in a bootloop trying to update to 5.1, please help.

Hey everyone I'm looking here as my last resort before sending my phone back to Motorola.
Bought a Nexus 6 from motorola uk which was delivered yesterday, switched phone on and all the Google apps on the phone updated, then had a notification OTA to download and install android 5.1 which I did, towards the end of the install process I had an error with the green android and a red exclamation mark.
I powered the device off with the power button and it turned back on and ever since it says "Android is starting" "Optimizing app 1 of 125" once it goes through all the apps it gets to the android boot screen then just goes back to the "Android is starting" "Optimizing app 1 of 125" over and over and over. (Infinite bootloop)
Pointers: The phone is not unlocked or rooted as I'm a noob its just fresh out the box, also I never opened/unlocked the developer options.
I have tried various recovery mode fixes, wiping cache and wiping all data and then rebooting the device with no luck.
Is there anyway I can hook my N6 up to my computer and fix this with a tool kit etc? I'm willing to try but I'd need basic instructions and reassurance it wouldn't muck up my warranty if it didn't work as my only other option is to exchange for a new device.
Any help, advice etc would be hugely appreciated. Thanks
Markh2001 said:
Hey everyone I'm looking here as my last resort before sending my phone back to Motorola.
Bought a Nexus 6 from motorola uk which was delivered yesterday, switched phone on and all the Google apps on the phone updated, then had a notification OTA to download and install android 5.1 which I did, towards the end of the install process I had an error with the green android and a red exclamation mark.
I powered the device off with the power button and it turned back on and ever since it says "Android is starting" "Optimizing app 1 of 125" once it goes through all the apps it gets to the android boot screen then just goes back to the "Android is starting" "Optimizing app 1 of 125" over and over and over. (Infinite bootloop)
Pointers: The phone is not unlocked or rooted as I'm a noob its just fresh out the box, also I never opened/unlocked the developer options.
I have tried various recovery mode fixes, wiping cache and wiping all data and then rebooting the device with no luck.
Is there anyway I can hook my N6 up to my computer and fix this with a tool kit etc? I'm willing to try but I'd need basic instructions and reassurance it wouldn't muck up my warranty if it didn't work as my only other option is to exchange for a new device.
Any help, advice etc would be hugely appreciated. Thanks
Click to expand...
Click to collapse
Read the guide on how to fastboot flash a factory image. No toolkit necessary.
Would you mind posting a link to a guide? I forgot to add that I don't want my phone to become rooted by trying to fix this issue, I want to keep it stock like it was, also does not have developer options enabled stop me from going further.
Sorry for the questions I'm a noob to this and quite anxious.
AndroidSlave said:
Read the guide on how to fastboot flash a factory image. No toolkit necessary.
Click to expand...
Click to collapse
Would you mind posting a link to a guide? I forgot to add that I don't want my phone to become rooted by trying to fix this issue, I want to keep it stock like it was, also does not have developer options enabled stop me from going further.
Sorry for the questions I'm a noob to this and quite anxious.
Can anyone still please help! I'm a noob and so need instructions on what to do! Please!
Markh2001 said:
Can anyone still please help! I'm a noob and so need instructions on what to do! Please!
Click to expand...
Click to collapse
If you connect the phone to the pc is it recognised in bootloader mode? Do you have adb installed onyour pc?
gee2012 said:
If you connect the phone to the pc is it recognised in bootloader mode? Do you have adb installed onyour pc?
Click to expand...
Click to collapse
All foreign language to me what your saying, trying my best to self learn right now. I'm downloading the adroid SDK and extracting the files, really want to sort this myself. Any pointers to getting into bootloader mode? And adb on the PC?
Markh2001 said:
All foreign language to me what your saying, trying my best to self learn right now. I'm downloading the adroid SDK and extracting the files, really want to sort this myself. Any pointers to getting into bootloader mode? And adb on the PC?
Click to expand...
Click to collapse
Look here http://forum.xda-developers.com/showthread.php?t=2588979 for easy adb installation. Read this too http://forum.xda-developers.com/nexus-6/general/how-to-nexus-6-one-beginners-guide-t2948481.
To get into bootloader mode power down the device and after that press volume down + power. Here`s a guide to setup the sdk/adb http://www.redmondpie.com/how-to-set-up-android-adb-and-fastboot-on-windows-tutorial/.
gee2012 said:
If you connect the phone to the pc is it recognised in bootloader mode? Do you have adb installed onyour pc?
Click to expand...
Click to collapse
I've made the fastboot adb folder on my PC and attached my phone whilst it was in bootloader mode, I types in the command box adb devices and there is no list of attached devices.
I presume this is because I didn't enable developer options or USB debugging?
Markh2001 said:
I've made the fastboot adb folder on my PC and attached my phone whilst it was in bootloader mode, I types in the command box adb devices and there is no list of attached devices.
I presume this is because I didn't enable developer options or USB debugging?
Click to expand...
Click to collapse
When in bootloader mode type : fastboot devices
-Edit- just read that your bootloade is still locked so i`am afraid there is nothing you can do to fix the issue as you cannot flash firmware with a locked bootloader. Best is to claim warranty because of a software issue while updating.
gee2012 said:
When in bootloader mode type : fastboot devices
-Edit- just read that your bootloade is still locked so i`am afraid there is nothing you can do to fix the issue as you cannot flash firmware with a locked bootloader. Best is to claim warranty because of a software issue while updating.
Click to expand...
Click to collapse
Sorry to be a noob but how do I do this? Is this on the PC I presume?
Markh2001 said:
Sorry to be a noob but how do I do this? Is this on the PC I presume?
Click to expand...
Click to collapse
There is nothing you can do with a locked bootloader, claim warranty/RMA
gee2012 said:
When in bootloader mode type : fastboot devices
-Edit- just read that your bootloade is still locked so i`am afraid there is nothing you can do to fix the issue as you cannot flash firmware with a locked bootloader. Best is to claim warranty because of a software issue while updating.
Click to expand...
Click to collapse
Thought this would be the case, I went into adb fastboot and typed in fastboot devices and its showing some letters and numbers next to fastboot on screen if that helps.
In the future I presume I should make sure to enable developer options first so I can get out if this mess?
Also would it be best when I get my new n6 just to sideload the latest update marsmellow by getting the factory image from the Google website? Last question can I skip from 5.0 straight to 6.0 sideloading or do I have tobdo it one at a time?
Thanks for trying to help matey
Markh2001 said:
Thought this would be the case, I went into adb fastboot and typed in fastboot devices and its showing some letters and numbers next to fastboot on screen if that helps.
In the future I presume I should make sure to enable developer options first so I can get out if this mess?
Also would it be best when I get my new n6 just to sideload the latest update marsmellow by getting the factory image from the Google website? Last question can I skip from 5.0 straight to 6.0 sideloading or do I have tobdo it one at a time?
Thanks for trying to help matey
Click to expand...
Click to collapse
Next time enable usb debugging and ENABLE OEM UNLOCK, both in developer options. You can flash the latest firmware available directly in fastboot by flashing the individual img files.
Here is a link to setup adb/platform-tools https://www.google.nl/url?sa=t&rct=...orial/&usg=AFQjCNGolazOWoMssTikMpokJ6TtwEND5A.
gee2012 said:
There is nothing you can do with a locked bootloader, claim warranty/RMA
Click to expand...
Click to collapse
This is getting very weird now as I just typed into the adb fastboot window : fastboot oem unlock and its giving me a message on my screen to click yes and unlock the bootloader?
Markh2001 said:
This is getting very weird now as I just typed into the adb fastboot window : fastboot oem unlock and its giving me a message on my screen to click yes and unlock the bootloader?
Click to expand...
Click to collapse
Well click the power button and in the next screen scroll down with the volume button to select yes and push power.
gee2012 said:
There is nothing you can do with a locked bootloader, claim warranty/RMA
Click to expand...
Click to collapse
It says this on my Nexus 6 phone screen.
Unlock bootloader?
If you unlock the bootloader, you will be able to install custom operating system on this phone.
A custom OS is not subject to the same testing as the original OS, and can cause your phone and installed applications to stop working properly.
To prevent unauthorized access to your personal data, unlocking the bootloader will also delete all personal data from your phone (a "factory data reset".)
Press the volume up/down buttons to select yes or no. Then press power button to continue.
Yes (Unlock bootloader, may void warranty)
No. ( Do not unlock bootloader and restart phone)
Markh2001 said:
It says this on my Nexus 6 phone screen.
Unlock bootloader?
If you unlock the bootloader, you will be able to install custom operating system on this phone.
A custom OS is not subject to the same testing as the original OS, and can cause your phone and installed applications to stop working properly.
To prevent unauthorized access to your personal data, unlocking the bootloader will also delete all personal data from your phone (a "factory data reset".)
Press the volume up/down buttons to select yes or no. Then press power button to continue.
Yes (Unlock bootloader, may void warranty)
No. ( Do not unlock bootloader and restart phone)
Click to expand...
Click to collapse
Click yes, see my above post
gee2012 said:
Click yes, see my above post
Click to expand...
Click to collapse
Okay but will I be able to relock and put it back to the way it was? Can you please stay around to help me do this step by step?! I'd appreciate it a million
Markh2001 said:
Okay but will I be able to relock and put it back to the way it was? Can you please stay around to help me do this step by step?! I'd appreciate it a million
Click to expand...
Click to collapse
Sure, but first we have to get the phone working again,

Can't access fastboot mode

I was gifted a Nexus 6 after my 5X died. As far as I know the device has never been OEM unlocked, much less flashed with anything. I've unlocked developer options and allowed USB debugging and OEM unlock but when I try to use power+Vol(-) to get into fastboot mode nothing happens, the screen is just black. When I bridged the device using ADB I could see the serial number and tried using the boot into recovery mode command and it rebooted to the same black screen. When I used fastboot commands on the black screen I could see the device and tried running fastboot oem unlock, it did something but wasn't successful in unlocking it. I'm not prepared to just start running fastboot commands blind like that without being able to see what's happening on the device's screen.
It's a curious problem, has anyone ever heard of it happening before? I can't find anything similar when I google it.
All I really want to do is clear the Dalvik cache and flash the latest factory image because currently, even after doing a factory reset, the device is very slow and laggy.
Is there anyway I could clear all the caches etc without going into fastboot mode or does anyone know of any fixes I could use so I can see the recovery menu?
If you boot to bootloader mode, then "fastboot boot <TWRP.img>" you might be able run twrp on your pc and clear caches. If it works, I'd consider factory resetting. You can get twrp here: https://dl.twrp.me/shamu/
I have considered that. But that requires OEM unlock, no? I still haven't managed to unlock it yet. The first time I tried, I said yes to unlock (it involves using the rocker to select a response, which I can't see the options for) but in the command window it said it failed (can't remember the error message though). I was going to try again today but because I couldn't see the options when I tried it said I'd cancelled the operation and I was too scared to try again in case something went wrong.
But, do you think I should try the fastboot oem unlock command again? I definitely need OEM unlock to install TWRP, right?
connorjolley said:
I have considered that. But that requires OEM unlock, no? I still haven't managed to unlock it yet. The first time I tried, I said yes to unlock (it involves using the rocker to select a response, which I can't see the options for) but in the command window it said it failed (can't remember the error message though). I was going to try again today but because I couldn't see the options when I tried it said I'd cancelled the operation and I was too scared to try again in case something went wrong.
But, do you think I should try the fastboot oem unlock command again? I definitely need OEM unlock to install TWRP, right?
Click to expand...
Click to collapse
To install twrp yes, you need an unlocked bootloader. This doesn't install twrp on the device. I believe it should work. It certainly shouldn't hurt. I've been unlocked since the N6 came out so I can't double check for you.
If it doesn't work, I'd be a bit inclined to just flash a factory image thus ensuring everything is stock and current. You might want to wait for others to chime in, but it's what I would do.
You may consider downloading Nexus Root Toolkit, works like a charm : ).
I can't just flash the stock bootloader without OEM unlock, right?
connorjolley said:
I can't just flash the stock bootloader without OEM unlock, right?
Click to expand...
Click to collapse
Correct, you need to be unlocked to flash a factory image, that includes the bootloader. See Google's instructions. Don't get confused by the "fastboot oem unlock"
vrs "fastboot flashing unlock" we are an older device and use oem unlock. The other is for the 6P and newer devices.
ktmom said:
Correct, you need to be unlocked to flash a factory image, that includes the bootloader. See Google's instructions. Don't get confused by the "fastboot oem unlock"
vrs "fastboot flashing unlock" we are an older device and use oem unlock. The other is for the 6P and newer devices.
Click to expand...
Click to collapse
Successfully unlocked. TWRP didn't help, still can't see the bootloader menu to access the recovery. I'm flashing the factory image now, hopefully a new bootloader will fix it. If not, is there anyway to clear the Dalvik cache using fastboot commands now the phone is unlocked?
UPDATE
Still a black screen even with a new bootloader flash. I'm assuming now this must be a hardware problem
connorjolley said:
Successfully unlocked. TWRP didn't help, still can't see the bootloader menu to access the recovery. I'm flashing the factory image now, hopefully a new bootloader will fix it. If not, is there anyway to clear the Dalvik cache using fastboot commands now the phone is unlocked?
Click to expand...
Click to collapse
I think the command is "fastboot erase cache". Also, unlocking will have wiped the device.
connorjolley said:
UPDATE
Still a black screen even with a new bootloader flash. I'm assuming now this must be a hardware problem
Click to expand...
Click to collapse
Why not just flash the entire factory image you got the bootloader from? What can it hurt? It would be really odd for this to be hardware if you can boot into the ROM and the screen works.

Mi A2 bootloader relock bootloop, need help ASAP!

Hay soo i wanted to relock bootloader after failing to install custom recovery (both) i turned off oem unlocking in developer options and did fastboot oem lock. Now the phone is looping in "your device can't be checked for corruption. Please lock the bootloader" and it reboots and says the same again.
When i try to unlock the bootloader with fastboot oem unlock i get "FAILED (remote: Flashing Unlock is not allowed)
I really dont know what to do and i need a phone for comunication. Please help!
You should only lock the bootloader after installing the stock ROM, otherwise your device will be bricked and the only way you'll get it back working is by flashing the EDL test points near the phone's battery and reflashing the stock ROM back in EDL mode.
Try downloading this tool then try to unlock oem, flashing and flashing critical.
Yepi69 said:
You should only lock the bootloader after installing the stock ROM, otherwise your device will be bricked and the only way you'll get it back working is by flashing the EDL test points near the phone's battery and reflashing the stock ROM back in EDL mode.
Try downloading this tool then try to unlock oem, flashing and flashing critical.
Click to expand...
Click to collapse
Noted. Thanks!
I really messed up here. The problem is i toggled allow oem unlocking off and to top it all off i did oem lock. Now its bootlooped (check the video). Does xiaomi fix this by warrenty? I really dont want to open the device up because i am afraid i will do more demage and void the warrenty and the device wont ever be fixed.
NotCat_ said:
Noted. Thanks!
I really messed up here. The problem is i toggled allow oem unlocking off and to top it all off i did oem lock. Now its bootlooped (check the video). Does xiaomi fix this by warrenty? I really dont want to open the device up because i am afraid i will do more demage and void the warrenty and the device wont ever be fixed.
Click to expand...
Click to collapse
I have seen another guy who did this. How is this possible that you turn off the unlock bootloader option when you've already unlocked it? The option gets greyed out and becomes non-functional.
Anyways I guess the best option is to give your phone to Xiaomi for the fix.
Njaiker said:
I have seen another guy who did this. How is this possible that you turn off the unlock bootloader option when you've already unlocked it? The option gets greyed out and becomes non-functional.
Anyways I guess the best option is to give your phone to Xiaomi for the fix.
Click to expand...
Click to collapse
It wasn't grayed out for me. I'm thinking of test pointing the device because i dont really want to wait few months until i get my phone back from service. (There is no xiaomi service in my Country)
But i'm afraid if i open the device i will void my warrenty for future.
NotCat_ said:
It wasn't grayed out for me. I'm thinking of test pointing the device because i dont really want to wait few months until i get my phone back from service. (There is no xiaomi service in my Country)
But i'm afraid if i open the device i will void my warrenty for future.
Click to expand...
Click to collapse
I don't think you will since you don't need to disassemble the device, all you need to do is remove the aluminum back cover carefully with damaging it and you'll find the test points right besides the battery
Yepi69 said:
I don't think you will since you don't need to disassemble the device, all you need to do is remove the aluminum back cover carefully with damaging it and you'll find the test points right besides the battery
Click to expand...
Click to collapse
will try to do that. all tho i think screen goes off first thanks for your help and sparking some hope into me and my phone <3
It finally booted up! After having some hard time shorting test points i finally did and it booted up just fine! Big thanks to @Yepi69
use custom rom
NotCat_ said:
Hay soo i wanted to relock bootloader after failing to install custom recovery (both) i turned off oem unlocking in developer options and did fastboot oem lock. Now the phone is looping in "your device can't be checked for corruption. Please lock the bootloader" and it reboots and says the same again.
When i try to unlock the bootloader with fastboot oem unlock i get "FAILED (remote: Flashing Unlock is not allowed)
I really dont know what to do and i need a phone for comunication. Please help!
Click to expand...
Click to collapse
since your device is already unlocked i recommend you using havoc os need instructions? instagram hsghumaan01
honey ghumaan01 said:
since your device is already unlocked i recommend you using havoc os need instructions? instagram hsghumaan01
Click to expand...
Click to collapse
Yes i do want to flash that rom, but i can't get twrp to boot on my unit. When i do fastboot boot "recovery name".img it says everything went fine, but i get black screen and thus can't get it to work nor install.
try other slot
NotCat_ said:
Yes i do want to flash that rom, but i can't get twrp to boot on my unit. When i do fastboot boot "recovery name".img it says everything went fine, but i get black screen and thus can't get it to work nor install.
Click to expand...
Click to collapse
try on both slots
honey ghumaan01 said:
try on both slots
Click to expand...
Click to collapse
Whats the fastboot command to change slots?
Mtp works fine tho.
NotCat_ said:
Whats the fastboot command to change slots?
Mtp works fine tho.
Click to expand...
Click to collapse
fastboot set-active {a or b}
To see what slot you current is on,
fastboot getvar current-slot
the command to chang slot with fastboot is
NotCat_ said:
Whats the fastboot command to change slots?
Mtp works fine tho.
Click to expand...
Click to collapse
fastboot set_active a/b
---------- Post added at 12:44 PM ---------- Previous post was at 12:41 PM ----------
NotCat_ said:
Whats the fastboot command to change slots?
Mtp works fine tho.
Click to expand...
Click to collapse
fastboot set_active a/b not sure can be fastboot set-actve a/b , you should use pitch black recovery instead of simple twrp
---------- Post added at 12:45 PM ---------- Previous post was at 12:44 PM ----------
honey ghumaan01 said:
try on both slots
Click to expand...
Click to collapse
dm me on instagram hsghumaan01
honey ghumaan01 said:
fastboot set_active a/b
Click to expand...
Click to collapse
That command doesn't seem to work on my pc :/ cmd just gives out all commands when i type
fastboot set_active B (on pc)
And nothing happens :/
Are there any particular adb/fastboot files i need to download?
MarcusMario0605 said:
fastboot set-active {a or b}
To see what slot you current is on,
fastboot getvar current-slot
Click to expand...
Click to collapse
Took a screenshot of your comment for later, thanks!
Are there any particular adb/fastboot files i need to download?[/QUOTE]
use this tool; https://mega.nz/#!cr4SUIqY!Rzlftk2OFun8XIkNQb2aXRtP7-t3f4DB92vMIl90pgw
(this tool,can disable driver signature,Install all drivers,qcom,etc)
https://forum.xda-developers.com/showthread.php?t=2588979
Download SDK Platform-Tools for Windows ; https://developer.android.com/studio/releases/platform-tools
QDLoader HS-USB Driver ; https://mega.nz/#!EqJwTIzB!KJF3CldYq_u7KylaL0iO6rs05RWs2_dcUfaENjJcDpU
fastboot edl (useful) ; https://mega.nz/#!x6BkXY5A!hx8SXoBwd4-fW1UkZ1poHc7p-MFDaQ85FYH7Yk8bLZ8
See and here how to use adb & fastboot from any directory on pc ; https://www.xda-developers.com/adb-fastboot-any-directory-windows-linux/
all of these are useful tools,that you must to have on pc
sry for english
don't use ''oem unlock'' on this device ...
try these commands : fastboot flashing unlock / fastboot flashing unlock_critical
__Test points-edl A2 see here : https://en.miui.com/thread-3524265-1-1.html (edl mode do not need unlocked bootloader)
daitalos said:
don't use ''oem unlock'' on this device ...
try these commands : fastboot flashing unlock / fastboot flashing unlock_critical
__Test points-edl A2 see here : https://en.miui.com/thread-3524265-1-1.html (edl mode do not need unlocked bootloader)
Click to expand...
Click to collapse
I already flashed the phone with edl test points. I'm running havoc os +hex
daitalos said:
don't use ''oem unlock'' on this device ...
try these commands : fastboot flashing unlock / fastboot flashing unlock_critical
__Test points-edl A2 see here : https://en.miui.com/thread-3524265-1-1.html (edl mode do not need unlocked bootloader)
Click to expand...
Click to collapse
Why not use oem unlock?

Xiaomi has auto bricked after update- need help

Hey guys, i have MI A2 cellphone, and after auto update programmed to three hours the smartphone show "AndroidONE" logo and then shutdown, i tried "Fastboot oem unlock", but it is my output:
PHP:
C:\Users\Lucas Daniel>fastboot oem unlock
FAILED (remote: 'Flashing Unlock is not allowed
')
Finished. Total time: 0.000s
. I'm desperate, I do not know what to try anymore, I believe I do not have unlock OEM activated, someone can help me?
Sorry for bad english, i'm from brazilian.
@LukeSkyPTBR
It's a well-known issue. One update was revoked as soon as Xiaomi has found out about phones bricking once it's installed. There's no way you can fix it by yourself except if you have ordered your phone from China (and so no warranty you have) and have experience in disassembling phones. There's a thing called test-point, do some research if you are self-assured in that area. Otherwise let your authorized service center make everything for you. It is a warranty case, either way.
sas.mar said:
@LukeSkyPTBR
It's a well-known issue. One update was revoked as soon as Xiaomi has found out about phones bricking once it's installed. There's no way you can fix it by yourself except if you have ordered your phone from China (and so no warranty you have) and have experience in disassembling phones. There's a thing called test-point, do some research if you are self-assured in that area. Otherwise let your authorized service center make everything for you. It is a warranty case, either way.
Click to expand...
Click to collapse
Thanks, looks that, unfortunately, my unique solution is test-point for activate EBL Mode... I will leave the topic open for the case of i get other solutions... after 3 days, if not get, i will close and the unique solution will really test-point.
Try rebooting it a couple of times and see if it boots. Or plug it to a charger and try booting it once it starts to charge successfully. If all fails, flashing via EDL might be your only option.
Try rebooting more than couple of time. Phone is supposed to switch to the other slot of A/B where original ROM (before update) resides. When it finally boots, get developer rights, switch on ADB Debugging and OEM unlock, thus next time update soft-bricks your phone you'll be able to unlock (or even better unlock immediately after successful boot not to loose your data in future).
Isnt Fastboot OEM Unlock command deprecated ? Shouldn't you use the unlock / unlock critical command ?
Tianhe said:
Isnt Fastboot OEM Unlock command deprecated ? Shouldn't you use the unlock / unlock critical command ?
Click to expand...
Click to collapse
What is it command?
Aerobatic said:
Try rebooting more than couple of time. Phone is supposed to switch to the other slot of A/B where original ROM (before update) resides. When it finally boots, get developer rights, switch on ADB Debugging and OEM unlock, thus next time update soft-bricks your phone you'll be able to unlock (or even better unlock immediately after successful boot not to loose your data in future).
Click to expand...
Click to collapse
How can I do it? I leave the phone in the charger for a long time? Or do you need the power button for a long time?
I tried to press the power button for 2 minutes and nothing happened.
When i leave the smartphone on the charge, after 50 minutes, show for me 100% percent, so, i pressed power button and the screen stayed lock in "AndroidONE", nothing happened, until try again press power button.
The problem original comebacked to me
LukeSkyPTBR said:
What is it command?
Click to expand...
Click to collapse
I tried, the same ploblem happenned... don't work, unfortunely... :/
LukeSkyPTBR said:
What is it command?
Click to expand...
Click to collapse
fastboot flashing unlock
fastboot flashing unlock_critical
Can't you just enter fastboot mode by holding power and vol- keys with phone connected to a PC?
(Or power and vol+, can't remember)
Phil_Smith said:
fastboot flashing unlock
fastboot flashing unlock_critical
Can't you just enter fastboot mode by holding power and vol- keys with phone connected to a PC?
(Or power and vol+, can't remember)
Click to expand...
Click to collapse
I can enter fastboot mode, but this is not enough to do run commands up. I would need unlock bootloader(OEM).
LukeSkyPTBR said:
I can enter fastboot mode, but this is not enough to do run commands up. I would need unlock bootloader(OEM).
Click to expand...
Click to collapse
If you can enter fastboot then you can go to EDL mode by typing 'fastboot reboot edl' and then use QPST to flash the latest stock rom.
LukeSkyPTBR said:
I can enter fastboot mode, but this is not enough to do run commands up. I would need unlock bootloader(OEM).
Click to expand...
Click to collapse
Do as tabun1994 said.
This will hopefully get the system up again.
The commands I wrote would unlock the bootloader. What else could I have meant?
If you succeeded with tabun's method, then you probably would only need to enable "USB debugging" and "OEM unlocking" in the ROM's developer options (which you'll enable by hitting "build number" in settings like 10 times or so).
Then you would connect the device and accept the 'trust this device' warning.
After booting to fastboot now, the commands I wrote should work and unlock the bootloader (if you even want that when your system is running again).
tabun1994 said:
If you can enter fastboot then you can go to EDL mode by typing 'fastboot reboot edl' and then use QPST to flash the latest stock rom.
Click to expand...
Click to collapse
This command needs OEM Unlock :/
this is my output: fastboot: usage: unknown reboot target edl
The test point method is actually easy , you have to dissasemble the display , easy procedure , remove the battery and short the two test points with tweezerz or something ,and in the meantime you plug the usb cable into the computer. It should install the Qusb_Hub drivers , and with miFlash you should be able to reflash the firmware . I bought a phone that was in this state and fixed it using these steps.
No more solutions, I will do the test point method, thanks to everyone who tried to help otherwise.
LukeSkyPTBR said:
This command needs OEM Unlock :/
this is my output: fastboot: usage: unknown reboot target edl
Click to expand...
Click to collapse
No it doesn't, i have tried this method on locked bootloader, go to this link - https://forum.xda-developers.com/an...e-how-to-reboot-to-edl-fastboot-t3394292/amp/
And download the fastboot_edl.7z , your phone will be in edl mode, I think you don't have the proper platform files which has caused the problem.
tabun1994 said:
No it doesn't, i have tried this method on locked bootloader, go to this link - https://forum.xda-developers.com/an...e-how-to-reboot-to-edl-fastboot-t3394292/amp/
And download the fastboot_edl.7z , your phone will be in edl mode, I think you don't have the proper platform files which has caused the problem.
Click to expand...
Click to collapse
Okays, thanks for this solution, i will get the smartphone tomorrow, if the technical assistance not resolved my problem, i will try. Thanks very much!
LukeSkyPTBR said:
Okays, thanks for this solution, i will get the smartphone tomorrow, if the technical assistance not resolved my problem, i will try. Thanks very much!
Click to expand...
Click to collapse
I execute bat archive but nothing happens in Mi A2 .-
tabun1994 said:
No it doesn't, i have tried this method on locked bootloader, go to this link - https://forum.xda-developers.com/an...e-how-to-reboot-to-edl-fastboot-t3394292/amp/
And download the fastboot_edl.7z , your phone will be in edl mode, I think you don't have the proper platform files which has caused the problem.
Click to expand...
Click to collapse
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