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Trouble returning to stock? Possible solution.

I spent half yesterday, into the wee hours of the morning trying to get my pixel back to life. Figured I'd post my goof as it may help someone later.
I flashed the aosp build using the android flash tool just out of curiosity. Realizing dual sim did not work on asop without gapps of some sort, I decided to go back to the public builds. That's where things went crashing down, fast and hard. Literally 6 hours trying everything I knew and everything I could find. Tried 3 different computers, multiple different cables, made sure adb and fastboot were updated like 5 times, tried using the flash tool, tried downloading and using flash all, tried erasing everything and starting over, tried lineage, tried side loading via adb, tried fastboot flashing individual images... All failed, flash tool complaining about not enough space, local installs complaining about missing partitions, not valid files, just everything that could go wrong did. The only thing I could successfully get installed was aosp.
The solution? What was preventing it? I use ublock and privacy badger. Disabling those, off to the races, everything went smoothly and I'm back up and running. What puzzled me, how could I used the flash tool to go to aosp but not back? Why, or how was it interfering with a local flash? Maybe things got screwed up somehow and that was messing with the local flash...idk but if you're in my position try disabling those and give it a whirl.

Which flash tool are you talking about? Everything you're doing sounds overly complicated.
I recommend sticking with cmd for windows, and terminals in linux .

noidea24 said:
Which flash tool are you talking about? Everything you're doing sounds overly complicated.
I recommend sticking with cmd for windows, and terminals in linux .
Click to expand...
Click to collapse
I tried that, I tried using the flash all bat for windows and then I tried flashing individual images via adb. Nothing worked. I have no clue why the local installations kept failing unless, as I said something got messed up using the android flash tool via chrome.
Here's the flash tool which I used to load aosp.

I can't understand what problem you were facing:
use newest platform tools
use newest Google USB drivers
use firmware image of google developers page
reboot into fastboot (by volDown + Power or via adb)
flash-all
working smooth like butter if you can read

hanni2301 said:
I can't understand what problem you were facing:
use newest platform tools
use newest Google USB drivers
use firmware image of google developers page
reboot into fastboot (by volDown + Power or via adb)
flash-all
working smooth like butter if you can read
Click to expand...
Click to collapse
I'm guessing you can't read, I did all that. I'm simply posting this in case someone else runs into the same issue I did. As I said, I'm not sure if trying the aosp build changed anything or any of my numerous attempts fouled something. The only way back was disabling ublock and privacy badger and using the flash tool. For clarification, I've been doing this since the very first android, the T-Mobile G1 and am not new to this game.

You were right, I didn't read carefully enough, or to call it by it's name, I misunderstood your posts. The title of your thread lets believe that you have trouble returning to stock and you need help on that.
That something goofy kicked you out of routine I didn't read (was reading from newest to oldest post, so tbh, that was not clever)
I'm also not new to this, so let us stay calm. Nice that you share your experiences.
I would suggest to change the title in: 'try this if you have trouble with returning to stock' I r something similar.
Have a good time!

hanni2301 said:
You were right, I didn't read carefully enough, or to call it by it's name, I misunderstood your posts. The title of your thread lets believe that you have trouble returning to stock and you need help on that.
That something goofy kicked you out of routine I didn't read (was reading from newest to oldest post, so tbh, that was not clever)
I'm also not new to this, so let us stay calm. Nice that you share your experiences.
I would suggest to change the title in: 'try this if you have trouble with returning to stock' I r something similar.
Have a good time!
Click to expand...
Click to collapse
No problem. I'm still at a loss as to what went wrong but needless to say, for myself, I won't be trying AOSP via the flash tool again.

Little late on this, but I was in a rut as well then realized I had adblockers on which caused issue with the flash tool.

Easiest way to get back to stock is by using Android Flash Tool https://flash.android.com/back-to-public

Firmware is unable to be flashed

Hi
I use a Realme X, while I assume the model might be not relevant to this case.
I tried several methods to flash both stock Rom`s and alternative ones, I did use both adb commands and adb sideloading and the official Realme tool.
To me, as a computer expert but phone noob, it seems like something fundamental might be broken in some protocol or even hardware.
Whatever I do, the firmware flashes to a certain extend and cancels then.
In most cases, there is not even a error message, it just fails to flash completely and pretents everything is good.
The phone is unlocked, has 3.4 TWRP installed and I can access it via my computer.
I used two different Windows computer, in order to exclude the host OS as the source of the failure.
Also used around 3 different cables.
Moving data around also works, I already did try to move the ROM to the device and install it there, same.
The device ran perfectly fine before I decided to try another ROM.

Is there any log that I can provide?

Twrp log would tell what happens. Also mitool would make logs on the pc.

MiTool for a Realme device?

ShalokShalom said:
MiTool for a Realme device?
Click to expand...
Click to collapse
I miss read that.

Brick. Stuck at "Qualcomm Crashdump"

Hi all,
My op6 is stuck, unable to reboot normally with the famous Qualcomm Crashdump mode message.
The phone has the bootloader unlocked, with TWRP recovery.
1 day ago I could access the recovery even reboot with the power+volume buttons, but it got to a point where it crashes all the time, unable to do anything.
Currently is only able to enter fastboot mode.
I have heard about the MSMDownload Tool.
- Does this tool keep the files/data in the internal memory?
For me the most important thing is to be able to recover the data.
The qualcom dumpcrash mode returns several different messages like:
- stack-protector kernel stack is corrupted in:--schedule*0xB90/OXOd0 (not exact numbers)
- fatal exceptinforece_signalinject.isra.8
Is there any chance of trying something?
I am extremely anxious and worried about the situation
Please help.

Ganapatya said:
Hi all,
My op6 is stuck, unable to reboot normally with the famous Qualcomm Crashdump mode message.
The phone has the bootloader unlocked, with TWRP recovery.
1 day ago I could access the recovery even reboot with the power+volume buttons, but it got to a point where it crashes all the time, unable to do anything.
Currently is only able to enter fastboot mode.
I have heard about the MSMDownload Tool.
- Does this tool keep the files/data in the internal memory?
For me the most important thing is to be able to recover the data.
The qualcom dumpcrash mode returns several different messages like:
- stack-protector kernel stack is corrupted in:--schedule*0xB90/OXOd0 (not exact numbers)
- fatal exceptinforece_signalinject.isra.8
Is there any chance of trying something?
I am extremely anxious and worried about the situation
Please help.
Click to expand...
Click to collapse
to start: it's good thing that you can get into fastboot mode. From there you should be able to do a complete re-install of your device, e.g. using the official LineageOS instructions.
Now to your situation: unfortunately you don't write too much about it like, is your phone running stock OOS or some custom ROM? If it's a custom ROM I'd say you open a topic in the according thread. Then: how much do you know about flashing recoveries, ROMs etc.
Regarding your data: in your current situation it may be extremely difficult if not impossible to secure any personal data now. How I understand it you cannot access the crucial partitions from the bootloader, at least I never heard of methods to get there. Although, people more knowledgeable than me may know of ways. So I do hope you are having recent backups at hand, on your PC or where-ever.
In that case I would start all over (and that's how I got out of a similar situation several months ago): flash recovery, flash latest OOS to both slots, factory reset / wipe everything (to remove any encrypted data you won't be able to access anyways), flash you ROM of choice incl. other part like GAPPS, if needed, do basic setup and then finally try to recover anything that is in you backups.
I wish you a lot of patience and good luck, you'll need it, I'm afraid.

lm089 said:
to start: it's good thing that you can get into fastboot mode. From there you should be able to do a complete re-install of your device, e.g. using the official LineageOS instructions.
Now to your situation: unfortunately you don't write too much about it like, is your phone running stock OOS or some custom ROM? If it's a custom ROM I'd say you open a topic in the according thread. Then: how much do you know about flashing recoveries, ROMs etc.
Regarding your data: in your current situation it may be extremely difficult if not impossible to secure any personal data now. How I understand it you cannot access the crucial partitions from the bootloader, at least I never heard of methods to get there. Although, people more knowledgeable than me may know of ways. So I do hope you are having recent backups at hand, on your PC or where-ever.
In that case I would start all over (and that's how I got out of a similar situation several months ago): flash recovery, flash latest OOS to both slots, factory reset / wipe everything (to remove any encrypted data you won't be able to access anyways), flash you ROM of choice incl. other part like GAPPS, if needed, do basic setup and then finally try to recover anything that is in you backups.
I wish you a lot of patience and good luck, you'll need it, I'm afraid.
Click to expand...
Click to collapse
Thank you for your reply.
is your phone running stock OOS or some custom ROM?
Click to expand...
Click to collapse
Stock OOS, android 10, last release.
Then: how much do you know about flashing recoveries, ROMs etc.
Click to expand...
Click to collapse
I have basic experience installing customs roms, rooting, twrp, unlock fastboot...following tutorials, of course.
Regarding your data: in your current situation it may be extremely difficult if not impossible to secure any personal data now. How I understand it you cannot access the crucial partitions from the bootloader, at least I never heard of methods to get there. Although, people more knowledgeable than me may know of ways. So I do hope you are having recent backups at hand, on your PC or where-ever.
Click to expand...
Click to collapse
here someone says that in theory it would be possible if you have the usb debugging enable, but silly me I had it open but I deactivated it I think, so I'm not sure if I have access or not.
OnePlus 6 Stuck At "Qualcomm Crashdump" Screen All A Sudden | Data Retrieval Critical
Hi good people at XDA. This is my first post on this website and I am absolutely hoping to receive help from you all to find a way out of the depressing and extremely anxious situation I'm in. I was using my OP6 normally today and while I was...
forum.xda-developers.com
Code:
adb devices
mkdir "C:\RECOVERED_DATA"
adb pull /sdcard C:\RECOVERED_DATA
and then finally try to recover anything that is in you backups.
Click to expand...
Click to collapse
but if I do all that flashing process any backups that are in the internal memory will be erased, right?
I had photos, files, whatsapp chat history, documents...etc and they were all in the internal memory. It is not a great loss but it is important for me to be able to recover it.
in your current situation it may be extremely difficult if not impossible to secure any personal data now
Click to expand...
Click to collapse
for me it is more important to recover the files than to recover the phone. your words are discouraging
I have read other posts and maybe being able to install on top (dirty install) the same rom I have, would leave the system as it, is being able to access my files. Not even installing the whole rom but extracting the boot image from the rom and then installing it. but I don't know if I can install a rom or boot image from fastboot, or if I need to have a working TWRP first.
It is said here:
- https://forum.xda-developers.com/t/...over-without-data-loss.4080725/#post-82257413
- https://forum.xda-developers.com/t/...over-without-data-loss.4080725/#post-82261087

Ganapatya said:
your words are discouraging
Click to expand...
Click to collapse
of course that is not my intention. I just try to be realistic
As I wrote in my post, my knowledge is quite basic. I know what I read , and what I experienced with my different devices. So again: you may find instructions and real-life stories showing you ways out of there.
My experience is that you cannot connect your OP6 phone to your PC via ADB while in bootloader / fastboot mode.
a) It's either one or the other: bootloader <=> fastboot or recovery / system <=> adb. Other devices may have different options but we're not talking about Samsung but about OP.
b) I did some additional research last night but I couldn't find a single source talking about *read* access to user data from fastboot. All you can do there is flash i.e. overwrite partitions
c) keep in mind that most probably your personal data are encrypted. So even if you find a way to access your personal data from bootloader / fastboot you may not be able to read it
d) I never used MSMtool, never had to. But I did some more research about it. It looks as if you could re-flash stock ROM using that tool but to the cost of wiping everything. At least that is what the tutorials I found are saying
That said I'd say you don't have much to lose and can go trying out some things.
From my experience the qualcomm crashdump error can have it's source in a malfunctioning recovery solution; I had that when flashing a wrong TWRP version that would not be in harmony with the previously flashed OOS firmware.
From what I read our devices don't have a separate recovery partition, instead it somehow lives somewhere/somehow in the boot partition (experts: please don't crucify me if that is wrong ). So if that is the case one idea would be to extract the boot image from the stock ROM image then flash that to /boot/ from fastboot. Don't know whether that really works and helps, but in theory you would have a default boot partition and kernel *without* a conflicting recovery solution.
In case you're successful you may be able to boot into system and make backups of everything that's valuable to you.
Again: this is extremely wild guessing here, and you'll have to read in a bit on how to properly extract parts of the ROM image.
I also would *strongly* recommend that you continue asking for help in a more technical thread like the LOS19.1 one or Funk Wizard's thread about unlocking and flashing our OP6.
I wish you all luck you need!

I think your best bet it a HW solution, get someone to:
1. replace the modem IC, it's the possible cause of the qualcomm crash
2. solder a direct connection to the internal memory so you can recover your data

[Oneplus 7 pro] semi brick after inappropriate LOS20 upgrade

Hi
I upgraded my LOS exactly as it was at wiki page described. With one exception. Instead of stock ROM as a base system I used LOS19. Wiki page does not described what kind of ROM should it be. Now I know that as base system have to be always STOCK ROM.
Well, lesson learned, but problem still presists. My LOS 20 works with few issues here and there, but main issue is USB problem.
Any cord which previously worked for me flawlessly, now does not work. under win I see an icon with ! in device manager. It is marked as device driver failure or something like that. This make me sick so badly. Because of that even MSM/EDL mode does NOT works...
Under linux no communication via USB at all. I did not check any logs but commands such as fastboot devices and adb devices returns empty lines.
only one thing which I managed to work is ADB over the wifi. This works.
My question is: can it be fixed? Can I get back to stock? does adb over wifi help with anything? I think that siedloading over wifi does not even exists, so I'm screwd pretty much.
My bootloader is one provided with LOS 20.

Well, new thing learned. When any custom ROM is used, then MSM tool might make thing worse. So I have to stay away this tool until I will have live stock ROM on my phone.

Figured out another thing. I can flash my phone without adb, fastboot either but I have to root the phone 1st. May I do it without USB access now?

How to fix Dm-verity corruption on BLU f91 5G after failed dsu loading?

I decided to load gsi via dsu loader in the settings app, I had oem unlocking enabled, and then I installed one of the gsi--it was random, I don't know too much about these types of things, like arm64 or something, at the time, so I just did the arm64 so for a bit, it was done downloading, all I needed to do was restarting the device, and then, after restarting it, it had this boot messages that says "dm-verity corruption. Your device is corrupt. It can't be trusted and may not work properly. Or, the device will power off in 5s". The device was working correctly except it just had that message everytime it boots, and it was still android 11 as normal instead of loading android 13 gsi. I tried to fix this dm-verity problems, with everything I can: I used adb and used the dm verity command (adb reboot dm-verity enforcing, adb reboot, fastboot set active other), I also did factory reset but that doesn't work, I contacted the customer services and they said as of right now, they don't provide roms or software to end user, and the only way to fix the devices with them is to send it to them and it cost 30 dollars, so i declined instead. I found these two application while on my way to research on fixing the devices: Unlocktools, and rom2box, but I am skeptical of them. I didn't found the firmware for this specific devices, but it did gave me hope that the only thing that came close is blu g91. I don't know what else to do besides use unlock tools, or rom2box, but I don't want to get my computer in danger, so I don't have that much choice.

Does anyone have a firmware file for BLU F91 5G though? I just founded one, but I can't download them, because I had to log in, but the website (Halabtech) seems kinda odd though, so I haven't log it in yet.

Nvm, I guess I'll just flash different gsi for different type of processor or something.

I Did same thing few weeks ago on my s91pro. Got same response from Blu and I can't seem to find a trusted place to get Firmware either. Sadly I don't have a pc to flash with but soon as I get my one plus device back I can try to sideload maybe.
Curios with your idea to flash again? If that works let me know please and good luck!!

My first idea was to use the dsu sideloading/vegebobo and shizuku for using gsi, my 2nd idea was to sue adb and fastboot, I would need to get gsi file, I could load either vb.meta, or just the system one instead. It took me a while because I was using outdated drivers, outdate adb, or just incorrect command. At first before all of this, I just wanna flash normal firmware, but I guess ill do that. It worked out for me, but I had problems with scren recording and wifi related in different gsi

btw, If u thinking of flash custom gsi on ur blu phone (in case if u don'twant to, I don't wanna force u or anything, just saying, so u don't have to deal with the burden) , I don't recommend using cdroid, in my expriences, wifi connected but doesn't work, and even using mobile data doesn't work either, lineageos was less worse.

Honestly with all the hassel it seems to cause I don't see it worth it. Hell even trying to fix the issue I have already seems to be a pain. I'm gonna just leave it be. Doesn't seem to cause any real issues other than the annoying warning during boottup. Which I just press the power one time and use phone as normal.
I am only using the Blu phone till I get my one plus back from warranty service. Then it's just a back up and alternate account I use for games.