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Hi guys,
I'm stuck in a boot loop. I flashed a rom, and after that I'm stuck in a boot loop.
The device starts up, and after a short time it boots again. When I press Power - Vol down I can enter my bootloader. But when I choose to enter my recovery (I have a Nandroid ready) it starts to boot loop again.
Can anybody help me? Thanks in advance!
Go in fastboot and reflash the recovery, after you can restore the nandroid or reflash a rom
Guich said:
Go in fastboot and reflash the recovery, after you can restore the nandroid or reflash a rom
Click to expand...
Click to collapse
My ADB is not working. I'm trying to fix that, but my computer doesn't sees my One.
wybren said:
My ADB is not working. I'm trying to fix that, but my computer doesn't sees my One.
Click to expand...
Click to collapse
Umh, you're in recovery?
What's the error?
Guich said:
Umh, you're in recovery?
What's the error?
Click to expand...
Click to collapse
No, I'm in fastboot. I tried several USB-ports, removed the drivers and reinstalled them, but nothing seems to work.
When I plug my USB cable in "Fastboot" changes to "Fastboot USB", but when I open a command screen (Windows 7) and type "adb devices" no device shows up. So when I try to for exampe "adb reboot recovery" I get "error: device not found"
Sure, because in fastboot you have to use the fastboot command like:
Code:
fastboot devices
Code:
fastboot flash recovery nameofrecovery.img
etc etc
Guich said:
Sure, because in fastboot you have to use the fastboot command like:
Code:
fastboot devices
Code:
fastboot flash recovery nameofrecovery.img
etc etc
Click to expand...
Click to collapse
When I type "fastboot devices" I get the following error: "fastboot isn't recognized as a interal or external command, program or batchfile." (translated from dutch)
wybren said:
When I type "fastboot devices" I get the following error: "fastboot isn't recognized as a interal or external command, program or batchfile." (translated from dutch)
Click to expand...
Click to collapse
Because you don't have the fastboot file into your adb folder.
Download this, unrar this and use this as adb/fastboot folder (remember to copy/paste the recovery)
Guich said:
Because you don't have the fastboot file into your adb folder.
Download this, unrar this and use this as adb/fastboot folder (remember to copy/paste the recovery)
Click to expand...
Click to collapse
Allright thanks, I managed to succesfully flash a recovery (CWM). But when I reboot I see the recovery screen for half a second, and then it starts to boot loop again (same as before I flashed the recovery). I tried two other recoveries (CWMT and TWRP) but I get the same result.
Do I have other options left?
Try with and erase cache.
When in fastboot usb use the command:
Code:
fastboot erase cache
Guich said:
Try with and erase cache.
When in fastboot usb use the command:
Code:
fastboot erase cache
Click to expand...
Click to collapse
That did the job! Thanks a lot! I appreciate your help!
wybren said:
That did the job! Thanks a lot! I appreciate your help!
Click to expand...
Click to collapse
:good::good:
Hello guys, ive been generally lucky in the sense that i have had no issues...until now.
I have tried installing the most recent updates (7.0, and now 7.1.1) and i continue to get this error through cmd. It does not seem to want to flash anything, and i have gotten it to flash, root, and twrp, but it still acted funky. Today, trying to remedy the situation, i attempted to flash the new 7.1.1 update, and return to stock (to later return to power user) but it is still doing it.
It says Bootloader: has-slot (not found), and a couple other things. When i try to flash individual pieces, it does not retain it. when i try to flash the flashall.bat, it flashes but does not flash everything, it will say the stuff has transferred 0 and skips it as it looks like. I cannot get my bootloader off the october one, and i have looked everywhere i can to try to fix this.. please help, its driving me mad. I will be happy to provide any information needed.
Thanks Community! You rock!
Have you tried a different USB cable? A different computer? How about a different USB AND a different computer? I think this would be a good place to start.
Can i ask you why this would matter? My usb seems to work fine, and my computer had no issues before this... i can still perform different actions, and my phone is showing up as ADB and Fastboot.
If it's not pc or usb cable related you can try to flash latest factory image step by step via fastboot without your simcard
Well, you might want to post the complete output of your flashing attempt, but if the bootloader slot isn't found, that's usually a sign of a hardware problem. Hopefully I'm wrong, but until we see more from you, I simply don't have an answer for you.
Ive tried to fastboot everything individually, and it refuses to take. I tried the flashall, same thing. I used NRT and it partially worked, but has sorta the same error. I will be flashing again and providing screenshots right now. I was able to get into a rom, root, twrp but i still cannot update all of those core things (bootloader, radio, and such) Thank you guys for the help. Much needed.
Here is the attempt to just flash the bootloader, i have tried from a different location but this is directly in Platform-Tools of the SDK. As you can also see, it does register under fastboot...
Try to flash radio and bootloader via twrp
https://forum.xda-developers.com/ne...-nexus-6-recovery-flashable-fastboot-t3066052
Did you try without simcard?
coremania said:
Try to flash radio and bootloader via twrp
https://forum.xda-developers.com/ne...-nexus-6-recovery-flashable-fastboot-t3066052
Did you try without simcard?
Click to expand...
Click to collapse
yes i have, i only do it with the simcard removed. Now whats weird is it says my bootloader is on 72.01, but my cmd clearly tells me its not working correctly...
coremania said:
Try to flash radio and bootloader via twrp
https://forum.xda-developers.com/ne...-nexus-6-recovery-flashable-fastboot-t3066052
Did you try without simcard?
Click to expand...
Click to collapse
I just tried what you suggest, and im not sure if it worked. It said everything wrote (on twrp) but it was very quickly done. I feel it did the same thing as CMD did.
You could try using the correct Fastboot command...
fastboot flash bootloader bootloader.img
The command is fastboot flash <partition> <image>
Your screenshot says only "fastboot flash image" but doesn't state the partition you're trying to load, hence "unknown partition".
And since we're on the subject, perhaps a repetition of the procedure I used to use before the full OTA days might be useful to you and other people.
Preparation.
- Take a TWRP backup and save it on your PC.
- Download factory image (https://developers.google.com/android/nexus/images#shamu) and unzip all files, including the zip within the zip. Rename the *.img files to the names below. Copy all of them to the same folder as your ADB/fastboot executables.
- Download the relevant TWRP and rename to twrp.img - also put in ADB/fastboot folder.
- Copy SuperSU to device (if root wanted).
- Set USB debugging in Developer options & attach to your PC.
- Open a CMD window, navigate to your ADB folder, and check connectivity with "adb devices". If it's ok, copy & paste each command below into the CMD window and run them - the only lengthy one is the system.img.
1. adb reboot bootloader
2. fastboot flash bootloader bootloader.img
3. fastboot reboot-bootloader
4. fastboot flash radio radio.img
5. fastboot reboot-bootloader
6. fastboot erase system
7. fastboot flash system system.img
8. fastboot erase boot
9. fastboot flash boot boot.img
10. fastboot erase cache
11. fastboot flash cache cache.img
12. fastboot reboot-bootloader
13. fastboot flash recovery twrp.img
14. From bootloader boot to TWRP and reflash superSu
dahawthorne said:
You could try using the correct Fastboot command...
fastboot flash bootloader bootloader.img
The command is fastboot flash <partition> <image>
Your screenshot says only "fastboot flash image" but doesn't state the partition you're trying to load, hence "unknown partition".
And since we're on the subject, perhaps a repetition of the procedure I used to use before the full OTA days might be useful to you and other people.
Preparation.
- Take a TWRP backup and save it on your PC.
- Download factory image (https://developers.google.com/android/nexus/images#shamu) and unzip all files, including the zip within the zip. Rename the *.img files to the names below. Copy all of them to the same folder as your ADB/fastboot executables.
- Download the relevant TWRP and rename to twrp.img - also put in ADB/fastboot folder.
- Copy SuperSU to device (if root wanted).
- Set USB debugging in Developer options & attach to your PC.
- Open a CMD window, navigate to your ADB folder, and check connectivity with "adb devices". If it's ok, copy & paste each command below into the CMD window and run them - the only lengthy one is the system.img.
1. adb reboot bootloader
2. fastboot flash bootloader bootloader.img
3. fastboot reboot-bootloader
4. fastboot flash radio radio.img
5. fastboot reboot-bootloader
6. fastboot erase system
7. fastboot flash system system.img
8. fastboot erase boot
9. fastboot flash boot boot.img
10. fastboot erase cache
11. fastboot flash cache cache.img
12. fastboot reboot-bootloader
13. fastboot flash recovery twrp.img
14. From bootloader boot to TWRP and reflash superSu
Click to expand...
Click to collapse
hahahaha well that could surely be the issue :silly:, but the one thing im wondering is why it wouldnt work through NRT, and i also "successfully" sideloaded the ota... Gonna try this now and hopefully it works! I shall report back when finished
dahawthorne said:
You could try using the correct Fastboot command...
fastboot flash bootloader bootloader.img
The command is fastboot flash <partition> <image>
Your screenshot says only "fastboot flash image" but doesn't state the partition you're trying to load, hence "unknown partition".
And since we're on the subject, perhaps a repetition of the procedure I used to use before the full OTA days might be useful to you and other people.
Preparation.
- Take a TWRP backup and save it on your PC.
- Download factory image (https://developers.google.com/android/nexus/images#shamu) and unzip all files, including the zip within the zip. Rename the *.img files to the names below. Copy all of them to the same folder as your ADB/fastboot executables.
- Download the relevant TWRP and rename to twrp.img - also put in ADB/fastboot folder.
- Copy SuperSU to device (if root wanted).
- Set USB debugging in Developer options & attach to your PC.
- Open a CMD window, navigate to your ADB folder, and check connectivity with "adb devices". If it's ok, copy & paste each command below into the CMD window and run them - the only lengthy one is the system.img.
1. adb reboot bootloader
2. fastboot flash bootloader bootloader.img
3. fastboot reboot-bootloader
4. fastboot flash radio radio.img
5. fastboot reboot-bootloader
6. fastboot erase system
7. fastboot flash system system.img
8. fastboot erase boot
9. fastboot flash boot boot.img
10. fastboot erase cache
11. fastboot flash cache cache.img
12. fastboot reboot-bootloader
13. fastboot flash recovery twrp.img
14. From bootloader boot to TWRP and reflash superSu
Click to expand...
Click to collapse
Unfortunately, it did not work. Now google app keeps crashing. Phone is extremely buggy.
Calko2882 said:
Unfortunately, it did not work. Now google app keeps crashing. Phone is extremely buggy.
Click to expand...
Click to collapse
Can you give a bit more detail? So the phone is crashing, but is it now on the version that you wanted to have (7.0, 7.1.1)? There is rarely such a thing as "too much information".
dahawthorne said:
Can you give a bit more detail? So the phone is crashing, but is it now on the version that you wanted to have (7.0, 7.1.1)? There is rarely such a thing as "too much information".
Click to expand...
Click to collapse
Ok, so what happens is that it says i am on 7.1.1 with i guess the related info, but it does not load in properly as you can see with the screenshots. I start up the initial setup, and i can get through most of it fine, but some areas *permissions* are all blotchy. like i can toggle them on to submit data but i cant see what it is exactly im agreeing to. Then i start the phone, Google App automatically crashes, along side system ui. When i updated them, it seemed to fix the problem. But the issue is, i am not receiving phone calls and texts until possibly days later, and when i send texts it says "sending" and proceeds to spam the hell outta whoever its going to (sends literally 30+ texts). When i call someone, my phones Do Not Disturb mode gets enabled, and then nicely cuts out my audio. I can turn this feature off when im in the call, but sometimes it will then glitch the phone app, and i cannot essentially "hangup". My phone also now dies at 9%, where it had not previously (when i was on other rom / older stock) This all started after i updated to the october patch, and i noticed in december that i didnt have the december patch / update. I went to install it, and the same exact thing occurred. Ive attempted a rescue ota, and a sideload ota, and now this stuff as well, but i fear the worst for my phone. Let me know if i need to add anything else
Strephon may be right in suggesting a hardware fault, but equally it may just be that your phone is now somehow corrupted. My only suggestion is that you nuke it - factory reset, TWRP, wipe everything again in TWRP, and then try installing from fresh using the 7.1.1 full (not OTA) image and the instructions I posted earlier. If it still doesn't work I'm out of ideas, but there are people with far greater experience here than I have, so don't give up. It's too nice a device to just write off.
Calko2882 said:
When i call someone, my phones Do Not Disturb mode gets enabled
Click to expand...
Click to collapse
That's a new feature of 7.1.1. So you won't have to listen to notifications while on the phone. It's disabled as soon as the phone call is over.
dahawthorne said:
Strephon may be right in suggesting a hardware fault...
Click to expand...
Click to collapse
I hope I'm wrong.
I can't work out what's going on.
My phone lost it's root a few days ago - I only noticed when Magisk said it had a new one. So here's the lowdown:
My TWRP is out of date.
Magisk is out of date.
I've downloaded both the magisk.zip file and an img file of the latest TWRP.
I put them on the deskop, in the adb folder (in C drive) and on the phone under "downloads".
Boot into recovery, but when I navigate to install a zip file, it can only see the system files, no "downloads" folder or pictures or anything. I can't seem to change that.
Use Powershell to try and sideload the TWRP zip and it says "waiting for device" - that seems good. However, when i then boot into fastboot mode, Powershell tells me "error: cannotload twrp... .img"
So I try and look at Magisk, but I can only download the zip (of which I've done and can't flash it via recovery), or patch boot file, of which I can't navigate to as I'm currently not rooted so it can't find the boot file anyway.
What do I type into Powershell to flash the latest Magisk (I guess I can then update TWRP after using the in-
built updater?)?
When in TWRP, I click on the three lines on the right, which say:
Could not muont /data and unable to find crypto footer.
Failed to mount '/data' (no such process)
Unable to recreate /data/media folder,.
Updating partition details
Failed to mount '/data' (no such process)
... done
Unable to mount storage
Failed to mount '/data' (no such process)
Full SELinux support is present
Unable to mount /data/media/TWRP/.twrps
MTP Enabled
Failed to mount '/data' (no such process)
Click to expand...
Click to collapse
What can be causing all of this?
Probably rip UFS chip, if
Code:
fastboot format userdata
won't help, then you should send your phone for repair
Hmm.
So the only fix is to format all the data?
What data gets deleted?
I don't really want to do that if I can help it but I guess it's the only way to fix it.
Strange how it's just done it by itself.
anotherxdauser said:
Hmm.
So the only fix is to format all the data?
What data gets deleted?
I don't really want to do that if I can help it but I guess it's the only way to fix it.
Strange how it's just done it by itself.
Click to expand...
Click to collapse
Is the system bootable? If yes, then you can make a backup, if not, then you can consider your data gone.
"format userdata" removes everything you have stored on the phone
Yeah, I can boot to my Resurrection Remix rom and see everything, all my files, it's fine.
I can connect to a PC and move files to and fro the device.
It's just TWRP doesn't seem to see the storage. When looking, it just says 0Mb :S
Does Userdata mean the apps and stuff as well?
I saw a video of someone formatting the userdata to ex2, then back to ex4 but if it means I'd have to reinstall RR then it's a lot of work for something that may happen again in the near future.
I have Titanium Backup but of course, it needs root, of which I can't gain :/
Sounds a lot like a failed decrypt of an encrypted userdata partition, this is common in this phone with TWRP and custom ROMs.
Skickat från min ONEPLUS A3003 via Tapatalk
pitrus- said:
Sounds a lot like a failed decrypt of an encrypted userdata partition, this is common in this phone with TWRP and custom ROMs.
Click to expand...
Click to collapse
Is there non-destructive way to fix?
Oh, ok, I thought that the system is broken too. That's ok then, your memory chip is fine.
Can you boot an up-to-date TWRP from fastboot and try to access data?
Try with
Code:
fastboot boot twrp-3.2.3-0-oneplus3.img
Which TWRP version do you have exactly?
Sent from my ONEPLUS A3003 using Tapatalk
przemcio510 said:
Oh, ok, I thought that the system is broken too. That's ok then, your memory chip is fine.
Can you boot an up-to-date TWRP from fastboot and try to access data?
Try with
Code:
fastboot boot twrp-3.2.3-0-oneplus3.img
Click to expand...
Click to collapse
Yeah, try this first. Problably you have a twrp lower than 3.2.0? I think below that it cannot decrypt Oreo encrypted Partitions.
Second thing is. Probably you have to format Data (not Userdata) anyway. I think you probably tried to upgrade Magisk because you lost root. But Magisk hat a bug in 17.0. That corrupted the permission Database. I had the same problem and was not able to get root again until formatted data. You will loose every app and its setting when formatting it. But everything under sdcard/ will still be there. So the download folder should be fine and everything. So when you make a titanium backup of your most valuable apps. You can restore them after renewing your phone.
TLDR:
1. Make Titanium Backup if you have it and want to have your apps back as before.
2. Try przemcio510 suggestion to get new TWRP. (most important)
3. backup your partitions and copy them to your pc
4. backup everything importantto you on your "SDCard" Volume (Where Download is and everything)
5. format DATA, Cache, Dalvik/ART Cache, System
4. Reflash Full OxygenOS 5.0.5
(optional) 5. Flash Rom of your flavor (with/without Gapps)
(optional) 6. Flash magisk
7. boot up your device
przemcio510 said:
Oh, ok, I thought that the system is broken too. That's ok then, your memory chip is fine.
Can you boot an up-to-date TWRP from fastboot and try to access data?
Try with
Code:
fastboot boot twrp-3.2.3-0-oneplus3.img
Click to expand...
Click to collapse
Did this. ADB said it was "waiting for device" so I rebooted to fastboot but then the ADB window shows some options (see quote below), nothing to show it's done anything.
I put the img file on the sim card on the phone and in the directory of the adb.
Code:
PS C:\WINDOWS\system32> fastboot twrp-3.2.3-0-oneplus3.img
usage: fastboot [ <option> ] <command>
commands:
update <filename> reflash device from update.zip
flashall flash boot, system, vendor and if found,
recovery
flash <partition> [ <filename> ] write a file to a flash partition
erase <partition> erase a flash partition
format[:[<fs type>][:[<size>]] <partition> format a flash partition.
Can override the fs type and/or
size the bootloader reports.
getvar <variable> display a bootloader variable
boot <kernel> [ <ramdisk> [ <second> ] ] download and boot kernel
flash:raw boot <kernel> [ <ramdisk> [ <second> ] ] create bootimage and
flash it
devices list all connected devices
continue continue with autoboot
reboot reboot device normally
reboot-bootloader reboot device into bootloader
help show this help message
options:
-w erase userdata and cache (and format
if supported by partition type)
-u do not first erase partition before
formatting
-s <specific device> specify device serial number
or path to device port
-l with "devices", lists device paths
-p <product> specify product name
-c <cmdline> override kernel commandline
-i <vendor id> specify a custom USB vendor id
-b <base_addr> specify a custom kernel base address.
default: 0x10000000
-n <page size> specify the nand page size.
default: 2048
-S <size>[K|M|G] automatically sparse files greater
than size. 0 to disable
PS C:\WINDOWS\system32>
RASTAVIPER said:
Which TWRP version do you have exactly?
Click to expand...
Click to collapse
3.1.1-0
S4RGE said:
TLDR:
1. Make Titanium Backup if you have it and want to have your apps back as before.
2. Try przemcio510 suggestion to get new TWRP. (most important)
3. backup your partitions and copy them to your pc
4. backup everything importantto you on your "SDCard" Volume (Where Download is and everything)
5. format DATA, Cache, Dalvik/ART Cache, System
4. Reflash Full OxygenOS 5.0.5
(optional) 5. Flash Rom of your flavor (with/without Gapps)
(optional) 6. Flash magisk
7. boot up your device
Click to expand...
Click to collapse
My Titanium Backup needs root to work :/
It might have been when I upgraded RR Rom to the Oreo release, but it's only been the past week when I mysteriously lost root access.
anotherxdauser said:
Did this. ADB said it was "waiting for device" so I rebooted to fastboot but then the ADB window shows some options
Click to expand...
Click to collapse
To be clear, I think you mean fastboot whenever "ADB" is mentioned above. adb and fastboot are related, but 2 different things, with different usages and requirements. So it's best to refer to them in correct and distinct terms.
adb: Needs debugging enabled. Will work only in OS or custom recovery. Will not work in bootloader (even in fastboot mode) - maybe this is why you have "waiting for device"?
fastboot: Does not need debugging enabled. Only works in bootloader-fastboot mode.
fastboot is what you want for booting/flashing TWRP. Not adb (at least for the commands/methods suggested here).
anotherxdauser said:
PS C:\WINDOWS\system32> fastboot twrp-3.2.3-0-oneplus3.img
Click to expand...
Click to collapse
When command prompt shows you the list of command, this almost always means your command syntax is incorrect.
In your case, you used typed "fastboot" and a file name, without telling it what to do with that file name. The suggested command was "fastboot boot filename" (no quotes) or another usage option is "fastboot flash filename".
A little confusing I know, "fastboot" in itself is not a full command/action. I has to be "fastboot boot". Think of fastboot as a "thing" instead of an action. Thus, you still need to tell fastboot to perform an action ("boot").
anotherxdauser said:
...
3.1.1-0
My Titanium Backup needs root to work :/
It might have been when I upgraded RR Rom to the Oreo release, but it's only been the past week when I mysteriously lost root access.
Click to expand...
Click to collapse
Ah right I forgot.
As redpoint73 mentioned you have to be in fastboot mode.
When you start up your phone and the unlock Warning ist triggered. Push the volume up or down button and go to fastboot.
When you are in there the fastboot command should work.
As redpoint73 pointed out it is very important that you type "fastboot boot (ImagePath)".
To make it easier for you, you should copy the image where fastboot is.
Then you have only to enter
fastboot boot twrp-3.2.3-0-oneplus3.img
This should do the trick. If you still need help. Don't hesitate to ask.
redpoint73 said:
To be clear, I think you mean fastboot whenever "ADB" is mentioned above. adb and fastboot are related, but 2 different things, with different usages and requirements. So it's best to refer to them in correct and distinct terms.
In your case, you used typed "fastboot" and a file name, without telling it what to do with that file name. The suggested command was "fastboot boot filename" (no quotes) or another usage option is "fastboot flash filename".
Click to expand...
Click to collapse
Sorry my explanation isn't that great.
Whenever I've mentioned adb it's the dos/command prompt window.
Fastboot is that small menu where it shows whether the device bootloader is locked or not isn't it?
At any rate, tried "fastboot boot twrp-3.2.3-0-oneplus3.img" and the command prompt window shows "waiting for device". My device is on, at the homescreen, doing nothing. The command prompt window stays like that until I boot into fastboot mode, where it then just shows the large list of commands quoted above.
HOWEVER, a development!
When in fastboot mode and using the "fastboot boot twrp-3.2.3-0-oneplus3.img" command, the window now says "cannot load 'twrp-3.2.3-0-oneplus3.img': No such file or directory". So I tried typing the exact file path (C:\adb\twrp... img), which has now allowed me to boot into the updated TWRP.
Does this mean it's just booted into it, but not updated to it?
I'm able to see the contents of my sdcard now. So flashed the latest 17.1 magisk zip and... success! I'm now on the latest magisk and have been able to flash the latest TWRP to recovery.
Just to say, I really appreciate the help with this.
I know I could factory reset but it's helping me learn more.
anotherxdauser said:
Whenever I've mentioned adb it's the dos/command prompt window.
Fastboot is that small menu where it shows whether the device bootloader is locked or not isn't it?
Click to expand...
Click to collapse
You confuse some terms. adb and fastboot are programs, command prompt is the interpreter of the commands you give to these programs.
And yes, the fastboot is that mode.
anotherxdauser said:
At any rate, tried "fastboot boot twrp-3.2.3-0-oneplus3.img" and the command prompt window shows "waiting for device". My device is on, at the homescreen, doing nothing. The command prompt window stays like that until I boot into fastboot mode, where it then just shows the large list of commands quoted above.
Click to expand...
Click to collapse
Fastboot mode is meant to be used while phone is booted into fastboot mode
anotherxdauser said:
When in fastboot mode and using the "fastboot boot twrp-3.2.3-0-oneplus3.img" command, the window now says "cannot load 'twrp-3.2.3-0-oneplus3.img': No such file or directory". So I tried typing the exact file path (C:\adb\twrp... img), which has now allowed me to boot into the updated TWRP.
Click to expand...
Click to collapse
"no such file" means that you could have not copied the img file to the same folder as the adb binary (this is not the case when adb and fastboot binaries are installed with %PATH% variable added, then you can use these commands all over the filesystem).
anotherxdauser said:
Does this mean it's just booted into it, but not updated to it?
Click to expand...
Click to collapse
Fastboot boot command, which I have provided earlier is used to boot temporarily, one time an image you tell it to.
anotherxdauser said:
Just to say, I really appreciate the help with this.
Click to expand...
Click to collapse
Just kindly informing that there is a button on the lower-right hand corner for this
anotherxdauser said:
Whenever I've mentioned adb it's the dos/command prompt window.
Fastboot is that small menu where it shows whether the device bootloader is locked or not isn't it?
Click to expand...
Click to collapse
Both adb and fastboot are command prompt functions. They are both "bridge" tools used to communicate from computer to the phone.
The phone menu screen you are referring to is bootloader. Fastboot is one of the choices on that (bootloader) menu. It puts the phone in fastboot mode, which is specifically intended for fastboot commands (only mode fastboot command will work). The response will always be "waiting for device" if you try fastboot commands, and not in fastboot mode.
If the command is "fastboot . . . " you are issuing fastboot commands (not adb).
If the command is "adb . . . " you are issuing adb commands.
Again, they are both related, but different. Different requirements and usages for adb versus fastboot. It is important to understand the distinction, so you don't waste more time trying command in the wrong mode (which will never work).
[GUIDE][HOW TO] Flashing with care & Surviving soft bricks with fastboot [CMD] [TIPS]
Hello guys, some of us are new to the A/B partitions. Flashing on wrong partition may end up in soft bricks. This is not a rooting guide, here I'm explaining how to handle flashing A/B partitions properly and survive soft bricks using fastboot . Always backup your data before flashing anything.
Those who still don't know about the A/B partitions, please take a look at this thread https://forum.xda-developers.com/oneplus-6/how-to/guide-noobs-guide-to-b-partitions-op6-t3816123
Prerequisites:
OnePlus 6T with unlocked or locked bootloader
A computer for running fastboot commands
You :laugh:
Rebooting
Rebooting your device via adb and fastboot
Code:
adb reboot //normal reboot
adb reboot recovery //reboot to recovery
adb reboot bootloader //reboot to fastboot (bootloader)
Code:
fastboot reboot //normal reboot
fastboot reboot bootloader //reboot to fastboot (bootloader)
Unlocking the Bootloader
Bootloader can be unlocked via fastboot
Code:
fastboot oem unlock
WARNING THIS WILL WIPE YOUR DATA
Working with A/B Partitions
There are two boot partitions on this device, named boot_a and boot_b respectively, they are not the “traditional” boot partitions. Both of these partitions contain a kernel and ramdisk like you are probably used to. The difference is that there is no recovery partition and the boot partition is new recovery partition. The A/B partitioning scheme can be quite confusing to users. There are actually two copies of many of the partitions. There is only one data (userdata) partition.
Slots
The concept of ‘slots’ comes into play to determine whether you are booting ‘slot A’ or ‘slot B’. We can determine which slot is ‘active’ or marked for booting via adb and fastboot:
Code:
adb shell getprop ro.boot.slot_suffix
Code:
fastboot getvar current-slot
Switching Slots
We can switch between slots via fastboot:
Code:
fastboot set_active other //switch to inactive slot
Code:
fastboot set_active (a or b) //switch to specified slot
Flashing/Booting
We can flash/boot (temporary flash) recovery/kernel via fastboot. To boot (what we call temporary flash) a kernel/recovery there is no need to switch/select any slot. Keep in mind that when we run the flash command instead of boot, it will wipe the specified partiton (you may lose your root & custom kernel)
Code:
fastboot boot boot.img or twrp_recovery.img
To flash permanently, first switch/select any slot you want or it will automatically flashed to the active slot. This may cause boot loop, always proceed with caution.
Code:
fastboot flash boot boot.img or twrp_recovery.img
Code:
fastboot flash recovery twrp_recovery.img
If your testing something, always use the inactive slot. Eg: if you want to test a custom rom, first back up your data then switch to the inactive slot and flash the custom rom, this will save your time (no need restore full backup only data).
Surviving Soft Bricks
Some possible simple solution we can try rather than using MSMTool or flashing the full rom.
When causing boot loops, try these:
Flash Magisk via recovery
Switch to the other slot via fastboot
Wipe data partiton via fastboot -w
When causing Bootloader crash, try these:
Turn off the phone by holding the power button (release after power off)
Hold both volume buttons
Now press power button
Phone will boot to fastboot
Now switch the other slot via fastboot
To be continued....
Just in case
This is my first A/B device so forgive my ignorance, I was wondering if its possible to flash two different roms on to different slots...like oxygen on one partition and lineage on other?
Also why twrp has two buttons 'slot a' and 'slot b' in reboot section?
The phone doesn't have recovery partition, so what happens on typing 'Fastboot flash recovery' command?
Thanks again for this tutorials. That's really helpful in understanding of the new Android features.
What'd be your advice on instructions to get stock kernel back? I couldn't find an appropriate command on how to do it
patelparth120595 said:
This is my first A/B device so forgive my ignorance, I was wondering if its possible to flash two different roms on to different slots...like oxygen on one partition and lineage on other?
Also why twrp has two buttons 'slot a' and 'slot b' in reboot section?
The phone doesn't have recovery partition, so what happens on typing 'Fastboot flash recovery' command?
Click to expand...
Click to collapse
You can install any rom on both slot, there is no problem. There is only one userdata partiton. The two buttons are for switching between slots, if you press slot a button, the recovery will mark slot a as bootable or active partition. On next boot or reboot rom from slot a will boot, this same thing is applied for slot b too. There is no dedicated partition for recovery , files for recovery are stored in system_root.
geminium said:
Thanks again for this tutorials. That's really helpful in understanding of the new Android features.
What'd be your advice on instructions to get stock kernel back? I couldn't find an appropriate command on how to do it
Click to expand...
Click to collapse
Get stock boot.img file and flash using fastboot
Code:
fastboot flash boot boot.img
AnoopKumar said:
You can install any rom on both slot, there is no problem. There is only one userdata partiton. The two buttons are for switching between slots, if you press slot a button, the recovery will mark slot a as bootable or active partition. On next boot or reboot rom from slot a will boot, this same thing is applied for slot b too. There is no dedicated partition for recovery , files for recovery are stored in system_root.
Click to expand...
Click to collapse
Thanks for the reply. Cleared all my doubts.
So could we have two ROMs and switch back and forth between on one device in this case?
geminium said:
So could we have two ROMs and switch back and forth between on one device in this case?
Click to expand...
Click to collapse
Because of one userdata partition, there will be some issues. If wipe data when switching roms, no issues then.
Man i could use some help patched the file moved it to harddrive tried fastboot flash boot boot.img (the patched one) and all i get is
C:\Users\seang\OneDrive\Desktop\Moto G Stylus 2021>fastboot flash boot boot.img
error: cannot open 'boot.img' Could you please make a guide with some pics or at least a step by step cause nothing i have tried has gotten root yet. Thanks!
Thanks to the OP.
This thread is intended to get a fully working twrp for our new device sooner than later by more of us participating.
This is a testing thread so YES ANYTHING CAN GO WRONG. But most likely will not go wrong..
All test builds compiled by me are from @mauronofrio source code
https://github.com/mauronofrio/android_device_oneplus_guacamole_TWRP
This guide was copied and pasted from @mauronofrio Twrp thread.
Install guide:
Actually seems "fastboot boot twrp.img" is not working so we need to use another guide:
1. Install fastboot tools from google's sdk on your PC
2. Enter fastboot mode
3. Unlock your bootloader
4. Now you should check which slot are you using with this command "fastboot getvar current-slot"
5. Now you should change the slot in use with this command "fastboot --set-active=*" you should replace with the slot is not in use, for example if you are using slot a the command will be "fastboot --set-active=b"
6. Now you should flash the twrp in the boot partion using this command "fastboot flash boot twrp.img"
7. Now reboot the device with in recovery mode scrolling the menu with the volume button and selecting "Recovery Mode" with the power button
8. First thing go in reboot menu and restore the old active slot
9. Now you can flash the installer (Actually you can do it using sideload, start sideload server from twrp advanced menu and from pc use this command "adb sideload twrpinstaller.zip")
If you are already rooted, you can skip all and directly flash the installer like a magisk module. Always remember that after you flashed the installer you will be unrooted.
Tips:
If you alread have a twrp flashed you can only flash the new installer zip or the new installation method to update your TWRP (remember to flash again magisk or your system will not boot).
If you have some problems with backup, like 255 error or something similar please check this guide: https://forum.xda-developers.com/one...e-999-t3801632
For the Bacups use always "system_image" and "vendor_image" instead of "system" and "vendor".
I need the following logs in order to find issues.
start a terminal window and enter below commands to get the logs
When TWRP boots enter below commands in terminal:
Code:
adb shell "getprop" > getprop.txt
adb pull /tmp/recovery.log
adb shell "dmesg" > dmesg.log
adb logcat > logcat.txt
and post the files here.
Links will be in post #2
Links to test builds
Test-0.2 f2fs filesystem
Twrp.img https://www.androidfilehost.com/?fid=1395089523397969888
Twrp installer https://www.androidfilehost.com/?fid=1395089523397969887
Test-0. 3 ext4 filesystem
Twrp.img https://www.androidfilehost.com/?fid=1395089523397969903
Installer https://www.androidfilehost.com/?fid=1395089523397969902
Under 6. Should we be using "fastboot flash recovery xxx.xxx" or the one from the post?
I might be able to test evening today.
Sent from my GM1911 using Tapatalk
vickyjusme said:
Under 6. Should we be using "fastboot flash recovery xxx.xxx" or the one from the post?
I might be able to test evening today.
Sent from my GM1911 using Tapatalk
Click to expand...
Click to collapse
fastboot flash boot twrp-test.img
Tried this method, but TWRP does not load. Stuck on this (image attached)
Reboot sticks to this screen again. Cannot access fastboot from here, but I can see my device from adb devices. Help me?
https://imgur.com/1s6dejl
Edit: start by power on+volume down loads fastboot.. Phew...
vukis said:
Tried this method, but TWRP does not load. Stuck on this (image attached)
Reboot sticks to this screen again. Cannot access fastboot from here, but I can see my device from adb devices. Help me?
https://imgur.com/1s6dejl
Edit: start by power on+volume down loads fastboot.. Phew...
Click to expand...
Click to collapse
Where are the logs. Please don't test and not provide logs. But thanks for informing test 0.3 doesn't work.
Just wondering how long you waited.