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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.
For what its worth-
I can boot into Android system recovery <3e> for Android 5.1.1 build # A1PV1.0.0B17 by powering off and pressing power and volume up at the same time then releasing when the Android appears. Pressing the volume key down instead takes you to Factory Test Mode. The following options are available in recovery:
reboot system now
apply update from ADB
wipe data/factory reset
wipe cache partition
reboot to bootloader
power down
view recovery logs
apply update from cache.
Unfortunately there seems to be no way to get into the bootloader. Hitting "reboot to bootloader" just reboots the phone back to android. One of these days someone will crack this phone. Just hoping we get some people with some development experience on board with this phone.
There was a post that I saw that said that ZTE phones come with the bootloader already unlocked, but I haven't found a way to check it. Has anyone tried to see if the Factory Test is just their fancy way of saying that it's in bootloader mode?
For fastboot: If you have ADB you have fastboot, even if you don't know it yet. Make sure adb sees you device by running the following:
Code:
adb devices
Code:
adb reboot bootloader
Your device will have a RED light at the top, and your screen will be black. Make sure Windows Update can get drivers for you, and it'll install it.
http://forum.xda-developers.com/showpost.php?p=48319535&postcount=29
http://forum.xda-developers.com/showthread.php?t=2520309
http://cellphonetipsandtrickss.blogspot.com/2013/10/the-super-secret-codes-fr-zte.html
Sebring5 said:
For fastboot: If you have ADB you have fastboot, even if you don't know it yet. Make sure adb sees you device by running the following:
Code:
adb devices
Code:
adb reboot bootloader
Your device will have a RED light at the top, and your screen will be black. Make sure Windows Update can get drivers for you, and it'll install it.
Click to expand...
Click to collapse
I've tried this and it simply reboots my Axon Pro (model A1P). Where are you getting the drivers from? (Besides windows update and Install mode when you connect the Axon to your PC.)
I use a Mac. No drivers needed.
Sebring5 said:
I use a Mac. No drivers needed.
Click to expand...
Click to collapse
That..doesn't exactly help..
Archfeind2 said:
That..doesn't exactly help..
Click to expand...
Click to collapse
http://forum.xda-developers.com/zte-axon/help/zte-axon-drivers-adb-t3173020
Sebring5 said:
http://forum.xda-developers.com/zte-axon/help/zte-axon-drivers-adb-t3173020
Click to expand...
Click to collapse
Already checked that thread out and the ZTE or the google drivers doesn't allow me to get to fastboot. After putting in "adb reboot bootloader" it just reboots the phone.
I also see that whenever you install the drivers from the phone, it installs only adb with a bunch of other ZTE programs for adb with no fastboot in sight.
Archfeind2 said:
Already checked that thread out and the ZTE or the google drivers doesn't allow me to get to fastboot. After putting in "adb reboot bootloader" it just reboots the phone.
I also see that whenever you install the drivers from the phone, it installs only adb with a bunch of other ZTE programs for adb with no fastboot in sight.
Click to expand...
Click to collapse
Try this: http://www.downloads.techdiscussion.in/smartphones/zte-axon-pro-pc-suite-and-usb-driver/
Okay cool. I'll check it out in a couple of minutes.
Edit:
It didn't work it was the same as the axon installer unfortunately. Maybe I'll have to virtual machine either mac or Linux, again >.<
I really want this phone's bootloader unlocked xD
So this morning I was lazy and tried rooting with the kingroot app, because I didn't want to factory reset. It went okay and I had root but I wanted to use SuperSU as my root manager. Well the binary wouldn't update so I figured i'd unroot from the kingroot app and remove kingroot from my phone, and root the proper way later. I pressed the unroot button and my phone rebooted, but now it's stuck in a bootloop.
I don't have an unlocked bootloader or a custom recovery, and I never checked the enable oem unlock in developer options so flashing stock isn't an option.
I tried sideloading the OTA for the build I was on, but I guess kingroot didn't actually unroot me, because it told me I needed to reflash.
I tried factory reset and wiping the cache in the stock recovery, and tried 'fastboot format userdata' and 'fastboot format cache' but that didn't work either.
The only thing I could find that might help is this post http://forum.xda-developers.com/nexus-6/help/info-nexus-6-nexus-9-enable-oem-unlock-t3113539
but since I don't think you can run adb commands in stock recovery or bootloader this won't work.
So is there any way to fix this or am I boned?
As far as I know the only fix is the one in that link but it does require custom recovery. I'm assuming the fastboot boot command doesn't work when locked but I've never tried, if it does then you could temp boot into twrp. Worth a shot I guess.
Hindsight's 20/20 but NEVER touch anything other than your data or cache partition with a locked bootloader. Google's security jump with lollipop has caused nothing but havoc for us.
ChaosDr0id said:
So this morning I was lazy and tried rooting with the kingroot app, because I didn't want to factory reset. It went okay and I had root but I wanted to use SuperSU as my root manager. Well the binary wouldn't update so I figured i'd unroot from the kingroot app and remove kingroot from my phone, and root the proper way later. I pressed the unroot button and my phone rebooted, but now it's stuck in a bootloop.
I don't have an unlocked bootloader or a custom recovery, and I never checked the enable oem unlock in developer options so flashing stock isn't an option.
I tried sideloading the OTA for the build I was on, but I guess kingroot didn't actually unroot me, because it told me I needed to reflash.
I tried factory reset and wiping the cache in the stock recovery, and tried 'fastboot format userdata' and 'fastboot format cache' but that didn't work either.
The only thing I could find that might help is this post http://forum.xda-developers.com/nexus-6/help/info-nexus-6-nexus-9-enable-oem-unlock-t3113539
but since I don't think you can run adb commands in stock recovery or bootloader this won't work.
So is there any way to fix this or am I boned?
Click to expand...
Click to collapse
If you already installed the drivers and know how to run fastboot commands skip to step 4. Otherwise, start at the beginning
1.) Install the Wugfresh Toolkit from here: http://forum.xda-developers.com/nexus-6/development/toolkit-wugs-nexus-root-toolkit-v1-9-8-t2947452 so that the drivers you need get installed along with fastboot and adb commands.
2.) Open Nexus Root Toolkit after it has finished installing. Under advanced utilities click "Launch" then choose launch command prompt for manual mode.
3.) Put your device in bootloader mode (pwr+vol down) and connect it to the computer. Type: "adb devices" into the command prompt and it should list a device serial number. If it does, go to step 4. If it doesn't, unplug the phone and plug it back in and re-run command.
4.) Then run the command "fastboot oem device-info" and tell us what the output is.
Hopefully when you rooted it, it unlocked your bootloader automatically. If you successfully rooted and rebooted it should technically be unlocked. We won't know until you run fastboot oem device-info
or, you can grab the factory image of whatever version of android that you were on, "unzip" it, grab the system.img, and flash it via fastboot. its the same thing as if was a "custom recovery", youre just reflashing the rom, and wont lose your data
first thing id do is flash a custom recovery and unlock my bootloader, and make a backup in recovery.
AlkaliV2 said:
If you already installed the drivers and know how to run fastboot commands skip to step 4. Otherwise, start at the beginning
1.) Install the Wugfresh Toolkit from here: http://forum.xda-developers.com/nexus-6/development/toolkit-wugs-nexus-root-toolkit-v1-9-8-t2947452 so that the drivers you need get installed along with fastboot and adb commands.
2.) Open Nexus Root Toolkit after it has finished installing. Under advanced utilities click "Launch" then choose launch command prompt for manual mode.
3.) Put your device in bootloader mode (pwr+vol down) and connect it to the computer. Type: "adb devices" into the command prompt and it should list a device serial number. If it does, go to step 4. If it doesn't, unplug the phone and plug it back in and re-run command.
4.) Then run the command "fastboot oem device-info" and tell us what the output is.
Hopefully when you rooted it, it unlocked your bootloader automatically. If you successfully rooted and rebooted it should technically be unlocked. We won't know until you run fastboot oem device-info
Click to expand...
Click to collapse
Hi, thanks for the reply.
It says
'device info' is not a supported oem command. See fastboot oem help.
FAILED <remote failure>
However I'm fairly certain the bootloader is still locked as I was unable to flash TWRP, or a stock image of android, as it tells me to unlock before doing those things.
AFAIK when you have this problem together with a stock recovery and a locked bootloader means bricked. >repair
Your bootloader is lock and you can't boot android to enable OEM unlock to unlock it. You have ruined your phone and there is no known fix.
RMA time for you.
Literally no solution unless you can invent one on your own.
Is it necessary to have your bootloader unlocked to boot into a custom recovery from your pc? Say you download twrp on your pc, would fastboot boot twrp.img be a work around for that?
CapitalParallax said:
Is it necessary to have your bootloader unlocked to boot into a custom recovery from your pc? Say you download twrp on your pc, would fastboot boot twrp.img be a work around for that?
Click to expand...
Click to collapse
yes
CapitalParallax said:
Is it necessary to have your bootloader unlocked to boot into a custom recovery from your pc?
Click to expand...
Click to collapse
Absolutely. Otherwise anybody with a notebook could swipe your phone, download everything you've got on it, then return it without you knowing, and that would mean more nekkid selfies on reddit.
CapitalParallax said:
Is it necessary to have your bootloader unlocked to boot into a custom recovery from your pc? Say you download twrp on your pc, would fastboot boot twrp.img be a work around for that?
Click to expand...
Click to collapse
The entire concept of a locked bootloader is that you can't flash images through it.
I need to lock my bootloader to do an exchange at T-Mobile. I have 20R stock flashed, but it still says custom bootloader upon boot, how do I relock it safely?
I read that "fastboot oem lock" will work, but will brick it if I don't do it perfectly. Any advice on what to do?
TechGuruGJ said:
I need to lock my bootloader to do an exchange at T-Mobile. I have 20R stock flashed, but it still says custom bootloader upon boot, how do I relock it safely?
I read that "fastboot oem lock" will work, but will brick it if I don't do it perfectly. Any advice on what to do?
Click to expand...
Click to collapse
ive done it .. it works. it will build dalvik once it reboots.
I was able to Lock the bootloader.
1. I connected the phone to my PC
2. Powered on the Phone (it took a few tried of pulling the battery and powering on)
3. Check the box for OEM Unlock in Dev. Option
4. Use Minimal ADB and Fastboot and type in
Quote:
adb devicecs
- you should see the phone listed as one of the devices in the command line window
Quote:
adb reboot bootloader
- phone should reboot and you shouold see 3 lines of text on top
Quote:
fastboot oem lock
- nothing will happen on the phone, but on in the commandline it should say that it is done
Quote:
fastboot reboot
Phone reboots and the boot screen does not show the unlocked bootloader message anymore
I'm terribly sorry if bumping is not ok.
Thought it wasn't worth making a new thread, since my post is about the one above.
Has anybody actually tried these steps above? (Since every other thread mentioning this says it's a one-way only thing..)
Does locking the bootloader means also loosing the custom recovery? (I'd expect that, but asking to be sure)
Does it return the phone to it's original state? (ie. before one unlocked the bootloader, or there are some differences?)
Does it also means I would be able to get official OTA updates and so on? (since with a custom recovery, that's not possible)
Thanks in advance.
Yes, it does work. I did it, worked perfectly. Yes it does return your device to it's original state. Just make sure the stock ROM is flashed and all should be well. I didn't try, but I see no reason why it wouldn't let you get OTA updates from T-Mobile. Let me know if you need help.
Nadeox1 said:
I'm terribly sorry if bumping is not ok.
Thought it wasn't worth making a new thread, since my post is about the one above.
Has anybody actually tried these steps above? (Since every other thread mentioning this says it's a one-way only thing..)
Does locking the bootloader means also loosing the custom recovery? (I'd expect that, but asking to be sure)
Does it return the phone to it's original state? (ie. before one unlocked the bootloader, or there are some differences?)
Does it also means I would be able to get official OTA updates and so on? (since with a custom recovery, that's not possible)
Thanks in advance.
Click to expand...
Click to collapse
ive said ive done it. on the above instructions you dont beleive.??
i think you loose the twrp phone doesnt show unlocked bootloader message did not check recovery but it must revert t stock one.. not sure about OTA since am not in tmobile network.
you dont need OTA. you can always download KDZ and flash it with LGUP.
and stay uptodate.
raptorddd said:
ive said ive done it. on the above instructions you dont beleive.??
i think you loose the twrp phone doesnt show unlocked bootloader message did not check recovery but it must revert t stock one.. not sure about OTA since am not in tmobile network.
you dont need OTA. you can always download KDZ and flash it with LGUP.
and stay uptodate.
Click to expand...
Click to collapse
Thanks both for replying.
And no @raptorddd , I did not mean that.
Your post is the only mentioning that locking the bootloader is possible, while all the other similar threads have ony people saying otherwise / it's not possible. I guess a slightly doubt is legit to have, don't take it wrongly
raptorddd said:
ive done it .. it works. it will build dalvik once it reboots.
I was able to Lock the bootloader.
1. I connected the phone to my PC
2. Powered on the Phone (it took a few tried of pulling the battery and powering on)
3. Check the box for OEM Unlock in Dev. Option
4. Use Minimal ADB and Fastboot and type in
Quote:
adb devicecs
- you should see the phone listed as one of the devices in the command line window
Quote:
adb reboot bootloader
- phone should reboot and you shouold see 3 lines of text on top
Quote:
fastboot oem lock
- nothing will happen on the phone, but on in the commandline it should say that it is done
Quote:
fastboot reboot
Phone reboots and the boot screen does not show the unlocked bootloader message anymore
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Click to collapse
I have follow this instructions and now it giving me and error. Any fix??
WARMANH811 said:
I have follow this instructions and now it giving me and error. Any fix??
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Click to collapse
What error?
TechGuruGJ said:
What error?
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Secure booting Error!
Error code: 1003
MODIFIED ! !
WARMANH811 said:
Secure booting Error!
Error code: 1003
MODIFIED ! !
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Click to collapse
are you sure you have h811.? i did not get that error ive tried this twice..
i remeber getting an security boot error on LG G2 i fix by flashing firmware .. so maybe KDZ could help..
if not am not sure then search for that error and find out how to fix.
raptorddd said:
ive done it .. it works. it will build dalvik once it reboots.
I was able to Lock the bootloader.
1. I connected the phone to my PC
2. Powered on the Phone (it took a few tried of pulling the battery and powering on)
3. Check the box for OEM Unlock in Dev. Option
4. Use Minimal ADB and Fastboot and type in
Quote:
adb devicecs
- you should see the phone listed as one of the devices in the command line window
Quote:
adb reboot bootloader
- phone should reboot and you shouold see 3 lines of text on top
Quote:
fastboot oem lock
- nothing will happen on the phone, but on in the commandline it should say that it is done
Quote:
fastboot reboot
Phone reboots and the boot screen does not show the unlocked bootloader message anymore
Click to expand...
Click to collapse
My H811 T-mobile phone needs service. It has original 20v software version. It is unlocked with TWRP and rooted. Can I use this method? Do I first have to downgrade software to some other version? Will this method also take out TWRP and root or do I still have to take them out before doing this? How? Please help.
joecandle said:
My H811 T-mobile phone needs service. It has original 20v software version. It is unlocked with TWRP and rooted. Can I use this method? Do I first have to downgrade software to some other version? Will this method also take out TWRP and root or do I still have to take them out before doing this? How? Please help.
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Click to collapse
no need to downgrade. to remove root and any trace if phone works. is to use KDZ then once it boots into system do the lock procedure. so it locks and the small white letter are removed. this way its like stock rom and recovery and the above commmands will make bootloader locked. and sent to repair. if bootloops try the freezing method.
Used on an LG Aristo that has Cyanogen and it worked
raptorddd said:
ive said ive done it. on the above instructions you dont beleive.??
i think you loose the twrp phone doesnt show unlocked bootloader message did not check recovery but it must revert t stock one.. not sure about OTA since am not in tmobile network.
you dont need OTA. you can always download KDZ and flash it with LGUP.
and stay uptodate.
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Click to collapse
This was the only one i found that didnt brick my phone and trust me ive bricked and unbricked this phone many times
When you use the fastboot command to lock back your bootloader, the phone doesn't revert automatically to the stock recovery and actually that is partly the reason why it bricks and other main reason is that changes made to bootloader to obtain root brick the phone. before you relock bootloader, if you have SuperSU (in-app menu option) or Magisk (uninstall zip file), use their respective methods to unroot the phone, then use twrp to flash .image file of stock recovery to recovery partition then use the fastboot command to lock the bootloader. Even then it may or may not work because if whatever method the phone uses to check the integrity of bootloader and/or recovery, such as md5, if it doesn't match, the phone will still brick. Since all your data on phone will be erased regardless as soon as you lock the bootloader, i personally just fastboot lock the bootloader, remove battery to power down, use the volume up and plug usb cable in from pc to put phone in download mode and just use LGUP (uppercut) if have kdz file already, which i do, i just let LG Bridge download the file, find it in programs folder and copy it to another location before LG Bridge deletes it --OR-- just use error recovery option in Software Update tab in LG Bridge as both LGUP and LG Bridge will detect the phone in download mode even if it is bricked.
By the way, I have used both methods above dozens of times without any issues, someone above who mentioned phone boot-looping because of locking the bootloader, it is boot-looping not because of hardware flaw which was widespread in LG G3 but a software issue (phone boots up, doesn't find the software configuration it is looking for and just restarts) and they are not the same issues, no need to freeze the phone, won't help.
the method works, but no OTA from T-Mobile. "verification problem".
When I try to "adb reboot bootloader" I get "security error".
If I try reboot recovery, TWRP is definitely not there.
Just want to update from20Q to 20X.
Any help would be appreciated.
metropical said:
the method works, but no OTA from T-Mobile. "verification problem".
When I try to "adb reboot bootloader" I get "security error".
If I try reboot recovery, TWRP is definitely not there.
Just want to update from20Q to 20X.
Any help would be appreciated.
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Click to collapse
The above points to you not giving permission possibly because either you missed the permission pop-up or selected option that didn't allow permission.
Can anyone help me?
When i unlock bootloader on my lg velvet 4g the fingerprint stop working so i want to relock. But when i put this on cmd "adb reboot bootloader" it only restarts my phone. Doesnt shows me the bootloader menu it only restarts normaly
Lukasz23 said:
Can anyone help me?
When i unlock bootloader on my lg velvet 4g the fingerprint stop working so i want to relock. But when i put this on cmd "adb reboot bootloader" it only restarts my phone. Doesnt shows me the bootloader menu it only restarts normaly
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Click to collapse
managed to solve?
So I just got my shiny new Nokia 8 and it seems to be updated to the latest version of Pie. Reading through all the root forums/threads, I'm noticing a couple issues with my phone that I'm not seeing mentioned:
-In Dev settings, OEM unlocking is off and grayed out, I can't toggle it.
-When I try to access download mode/bootloader (volume down/plug in cable from pc) my screen does a little flashy thing and then goes straight to the battery percentage.
-I can ADB devices just fine and see the phone, when I ADB reboot bootloader, the phone gets stuck on a screen showing "powered by android'', with "download mode" in the upper left corner, and any fastboot commands return absolutely nothing.
Any tips or suggestions?
Many thanks
jgro1976 said:
So I just got my shiny new Nokia 8 and it seems to be updated to the latest version of Pie. Reading through all the root forums/threads, I'm noticing a couple issues with my phone that I'm not seeing mentioned:
-In Dev settings, OEM unlocking is off and grayed out, I can't toggle it.
-When I try to access download mode/bootloader (volume down/plug in cable from pc) my screen does a little flashy thing and then goes straight to the battery percentage.
-I can ADB devices just fine and see the phone, when I ADB reboot bootloader, the phone gets stuck on a screen showing "powered by android'', with "download mode" in the upper left corner, and any fastboot commands return absolutely nothing.
Any tips or suggestions?
Many thanks
Click to expand...
Click to collapse
- you cant toggle it because you have not unlocked the bootloader. Sometimes even after you unlock it it will be greyed out, which isnt of importance. To unlock the bootloader downgrade to Oreo November update by sideloading the relevant ROM, then follow the the official HMD instructions.
- Make sure USB debugging is turned on under developer options.
- Are you attempting to boot into the OS or recovery here? Abd reboot is enough to boot into your system. To boot into recovery use adb reboot recovery. Or do it manually using the keys.
Ok, everything I've read so far says to make sure OEM unlock is enabled before you do anything else, so you've confused me now. And none of the guides talk about sideloading the ROM, so you've thrown a new twist with that as well.
USB debugging is enabled, and my computer sees the device via adb devices, but if I try adb reboot recovery, all I get is the little android icon with the red triangle over him, and if I try adb reboot bootloader, basically nothing happens. And I wasn't trying to boot into the OS or recovery, I'm not a noob but maybe this phone is just different enough from what I'm used to I guess.
So basically I'm stuck right now, can't boot into recovery, can't sideload a ROM, can't boot into the bootloader/download mode either.
MDV106 said:
- you cant toggle it because you have not unlocked the bootloader. Sometimes even after you unlock it it will be greyed out, which isnt of importance. To unlock the bootloader downgrade to Oreo November update by sideloading the relevant ROM, then follow the the official HMD instructions.
- Make sure USB debugging is turned on under developer options.
- Are you attempting to boot into the OS or recovery here? Abd reboot is enough to boot into your system. To boot into recovery use adb reboot recovery. Or do it manually using the keys.
Click to expand...
Click to collapse
Actually, thank you, you got me thinking and I was able to get downgraded to the Oreo, got my code from Nokia and unlock.key, now the only thing I'm still having a hard time with is my computer won't detect my phone in fastboot mode. Works just fine in normal ADB commands, but no fastboot...
You'd think my drivers are all fine and that since ADB sees the device, but maybe not?
jgro1976 said:
Ok, everything I've read so far says to make sure OEM unlock is enabled before you do anything else, so you've confused me now. And none of the guides talk about sideloading the ROM, so you've thrown a new twist with that as well.
USB debugging is enabled, and my computer sees the device via adb devices, but if I try adb reboot recovery, all I get is the little android icon with the red triangle over him, and if I try adb reboot bootloader, basically nothing happens. And I wasn't trying to boot into the OS or recovery, I'm not a noob but maybe this phone is just different enough from what I'm used to I guess.
So basically I'm stuck right now, can't boot into recovery, can't sideload a ROM, can't boot into the bootloader/download mode either.
Click to expand...
Click to collapse
Bootloader, unlocked! Now if I can get the rest of my home wireless **** to work this well/easily, thank you for getting me pointed in the right direction, all good here (I hope).
jgro1976 said:
Actually, thank you, you got me thinking and I was able to get downgraded to the Oreo, got my code from Nokia and unlock.key, now the only thing I'm still having a hard time with is my computer won't detect my phone in fastboot mode. Works just fine in normal ADB commands, but no fastboot...
You'd think my drivers are all fine and that since ADB sees the device, but maybe not?
Click to expand...
Click to collapse
jgro1976 said:
Bootloader, unlocked! Now if I can get the rest of my home wireless **** to work this well/easily, thank you for getting me pointed in the right direction, all good here (I hope).
Click to expand...
Click to collapse
Im guessing you finally realised they after getting the android icon with the red triangle u have to press volume up and hold it then tap the power key to enter the recovery. Good to know you managed to unlock the bootloader eventually.
A lot of people have been having issues with fastboot, especially on Windows machines . Try restarting the shell or use a different USB port on your computer?also maybe try a different driver version and see if it helps.