Develop Bugs

Accidently UNINSTALLED OS - Will pay for HELP.

I completely messed up my Nexus when I was installing something and forgot to back it up. I made some more mistakes and now I don't have an OS. I've been searching for the past 4 hours on how to fix this and literally nothing is working for me.
If someone can help me get my device back up I WILL pay. I'm a total newbie with android... Let me know if you can help.

Describe what you did in detail up to this point.

Username invalid said:
Describe what you did in detail up to this point.
Click to expand...
Click to collapse
First mistake was attempting to install an Audio driver on my nexus. I got stuck on the loading screen so I was told to wipe my storage. Wiped everything! I have no clue what i'm supposed to do now...
I tried to system restore and reformat but the result is the same; When I reboot the device, I get stuck on the Google screen. On my PC, my device manager shows the device as Android Bootloader Interface.

AGul726 said:
First mistake was attempting to install an Audio driver on my nexus. I got stuck on the loading screen so I was told to wipe my storage. Wiped everything! I have no clue what i'm supposed to do now...
Click to expand...
Click to collapse
Did you install through recovery? Which recovery? Which loading screen?

Username invalid said:
Did you install through recovery? Which recovery? Which loading screen?
Click to expand...
Click to collapse
I installed it through TWRP. The loading screen I get is the default Google screen with the small lock button on the bottom.

AGul726 said:
I installed it through TWRP. The loading screen I get is the default Google screen with the small lock button on the bottom.
Click to expand...
Click to collapse
If you selected the format option in TWRP it would have deleted your userdata and internal partition leaving your system intact; unless you also selected to wipe the system in Advanced Wipe options.

Username invalid said:
If you selected the format option in TWRP it would have deleted your userdata and internal partition leaving your system intact; unless you also selected to wipe the system in Advanced Wipe options.
Click to expand...
Click to collapse
Thats the thing... I went into advanced wipe options and wiped the interal and userdata as well...

AGul726 said:
Thats the thing... I went into advanced wipe options and wiped the interal and userdata as well...
Click to expand...
Click to collapse
They probably meant to wipe just the cache and dalvik cache - not your system, userdata and internal.

I still have access to TWRP and bootloader. I'm trying to access fastboot so I can just flash a new ROM and everything should be back to normal but nothing is working for me. Teamviewer would help alot; if someone could come walk me through everything. I will pay, without a doubt, if I get it fixed.

If you still have your recovery and ADB setup on your computer then you can ADB push or ADB Sideload a ROM.

Username invalid said:
If you still have your recovery and ADB setup on your computer then you can ADB push or ADB Sideload a ROM.
Click to expand...
Click to collapse
Could you possibly get on teamviewer and walk me through this? I've been doing this for the last 4-5 hours and nothing is going my way... I'm honestly desperate to get this working again.
Something is wrong with my ADB Sideload; it keeps saying the device can't be found. I don't know what the problem is...

AGul726 said:
Could you possibly get on teamviewer and walk me through this? I've been doing this for the last 4-5 hours and nothing is going my way... I'm honestly desperate to get this working again.
Something is wrong with my ADB Sideload; it keeps saying the device can't be found. I don't know what the problem is...
Click to expand...
Click to collapse
I can try. PM me your Teamviewer ID and Pass.

I can't PM you; says you aren't accepting PMs at this time...

I'm in the same boat. I had a backup I was going to restore (after flashing a zip that gave me a bootloop), I formatted everything, lost my backups, have no OS and I keep getting device not found. Le Sigh.
Update: I used PDAnet, *reinstalled drivers*, currently flashing a rom. Thanks for all the help.

Can't you guys just go into fastboot mode and flash the stock images? And make sure the drivers are installled properly.
Edit: this one may work for you: http://forum.xda-developers.com/showthread.php?t=2381582

Remcotjuuh said:
Can't you guys just go into fastboot mode and flash the stock images? And make sure the drivers are installled properly.
Edit: this one may work for you: http://forum.xda-developers.com/showthread.php?t=2381582
Click to expand...
Click to collapse
Use the One Click Restore ^
I had done the exact same thing, wiping my OS out b4 copying a ROM onto the internal storage, but for different reasons, but the above link saved me.

This should help too:
http://forum.xda-developers.com/showthread.php?t=2380913
It should help you get out of almost any soft brick if I'm not mistaken.

Nexus stuck in boot loop - unrooted - Backing up photos from bootloader or recovery

Hi.
Apologies if this is a very naive question, I am not particularly familiar with mods, roms and so forth.
I have rooted another phone in the past, but that is all.
The situation:
- Samsung Galaxy Nexus
- Not rooted/unlocked. Stock android automatically updated to the latest Android version supported
- Android developer option NOT set in settings
- Stuck in a boot loop: boots to android and then after a few seconds reboots, so no time to do anything
- Not sure how it happened, I had it for years, it was in my pocket and suddenly started doing that.
- Android fastboot and recovery loads up no problem
- I have tried anything I could find online to fix it: deleted cache, rebooted in safe mode, removed battery for 10 hours
- Nothing seems to fix it, it keeps rebooting
- I want to try a factory reset, but my family photos are in the phone
- Google synch seems to have stopped functioning for this device a year ago, all my 2016-17 photos and videos are locked in the phone.
Admitting there is nothing to do about the loop problem:
Is there any way I can copy photos and videos via usb while in recovery mode?
After I will reset the phone via recovery menu, hoping it will fix it. IF that does not fix it, I will flash another rom in. But I really do not want to wipe my data before backing them up.
I am assuming the answer is no, you cannot access the internal memory in fastboot/recovery unless your phone is rooted.
But I would like an expert opinion before I resolve to wipe one year of photos and videos which I will regret losing.

@mcaldo DON'T DO FACTORY RESET, EVERYTHING WILL BE LOST
which recovery are you using..?
if it's TWRP, then it's easy..
- boot into TWRP recovery
- go to "Mount" tab
- find "enable/disable MTP" button at lower options.. (enable it )
then connect your phone to that PC, where you always connected in past, ( to eliminate driver installation stage, all drivers will be preinstalled )
Regards

____Mdd said:
@mcaldo DON'T DO FACTORY RESET, EVERYTHING WILL BE LOST
which recovery are you using..?
if it's TWRP, then it's easy..
- boot into TWRP recovery
- go to "Mount" tab
- find "enable/disable MTP" button at lower options.. (enable it )
then connect your phone to that PC, where you always connected in past, ( to eliminate driver installation stage, all drivers will be preinstalled )
Regards
Click to expand...
Click to collapse
Thanks for your reply!
By recovery, I meant 'android system recovery'
It gives me the following options:
reboot system now
apply update from ADB
apply update from USB drive
wipe data/factory reset
wipe cache partition
Is any of the above useful?
Unfortunately, I do not have any alternative recovery software available
Edit: Googling I found this: "Apply update from ADB: The Android Debug Bridge allows you to plug your device into your PC and issue commands from there. "
If I can issue commands through ADB, perhaps there is a command to copy data from my phone to my computer?

mcaldo said:
Thanks for your reply!
By recovery, I meant 'android system recovery'
It gives me the following options:
reboot system now
apply update from ADB
apply update from USB drive
wipe data/factory reset
wipe cache partition
Is any of the above useful?
Unfortunately, I do not have any alternative recovery software available
Edit: Googling I found this: "Apply update from ADB: The Android Debug Bridge allows you to plug your device into your PC and issue commands from there. "
If I can issue commands through ADB, perhaps there is a command to copy data from my phone to my computer?
Click to expand...
Click to collapse
Yes, you can copy through adb commands..
Get and extract Minimal ADB and Fastboot from here: https://forum.xda-developers.com/showthread.php?t=2317790
From PC, run CMD to extracted folder directory.
Connect phone to PC, go to update from ADB(in recovery),
Type "adb device" , it will show serial number and connected..
Then "adb pull /sdcard " (if you know particular directory of data then write it like /sdcard/photos,, otherwise writing /sdcard will copy all folders from your phone. )
it will start copying to same adb folder ..

____Mdd said:
Yes, you can copy through adb commands..
Get and extract Minimal ADB and Fastboot from here: https://forum.xda-developers.com/showthread.php?t=2317790
From PC, run CMD to extracted folder directory.
Connect phone to PC, go to update from ADB(in recovery),
Type "adb device" , it will show serial number and connected..
Then "adb pull /sdcard " (if you know particular directory of data then write it like /sdcard/photos,, otherwise writing /sdcard will copy all folders from your phone. )
it will start copying to same adb folder ..
Click to expand...
Click to collapse
Thanks for the advice.
I followed the instructions closely, and nearly got there.
adb devices returns
#serialnumber sideload
so all good
but adb pull /sdcard returns
adb: error connect failed: closed
I tried several other commands with no success
kill-server and start-server work fine but do not solve the problem
adb usb returns
error closed
So, I am starting thinking that the problem is in the bootloader being locked.
However, if I unlock it, it will be wipe all my data, I understand?
Googling about it, I found this:
The behavior is status-by-design. Your stock recovery is not designed to grant shell access. Your only choice here is to somehow manage to flash a custom recovery. – Firelord Dec 30 '15 at 14:19
3
To achieve something similar to what @FireLord suggested: TWRP can be booted on many devices without being installed. For that, find a matching image, then boot to the bootloader and run fastboot boot twrp.img. Btw: you can check with fastboot devices resp. adb devices whether a device is visible to the corresponding tool. – Izzy♦ Jul 8 '16 at 19:40
So I understand one could boot TWRP without installing it, but I am not sure if that means I could do that with the bootloader locked?
I found WugFresh nexus root toolkit which seems to do that, among many other things, but again it warns that the phone must be unlocked (using the android build "Android *.* Any", I did not know what else to choose, not sure if that makes any difference as for locked/unlocked requirements)
EDIT: my fastboot screen reads "FASTBOOT STATUS - Failbootloader locked" as the last line, when trying to run TWRP without installing.

Yes, unlocking bootloader will wipe everything..
What actually you did ? Why it went into bootloop ???
I have also read that about boot into TWRP without installing.. and it worked for many one without unlocking bootloader... Don't know why not on GNex.

____Mdd said:
Yes, unlocking bootloader will wipe everything..
What actually you did ? Why it went into bootloop ???
I have also read that about boot into TWRP without installing.. and it worked for many one without unlocking bootloader... Don't know why not on GNex.
Click to expand...
Click to collapse
What actually you did ? Why it went into bootloop ???
Click to expand...
Click to collapse
A very good question, to which I have no answer, unfortunately.
The phone was used by my wife for 2 years and then by me for other 2. I recently changed the battery.
Never rooted or unlocked. No unusual apps installed. I am a very basic user, as you might have guessed, and being my only phone at the moment, I really would not risk experimenting with it.
It went very slow over the last 4 months, so I was planning to reset it.
I put in my coat pocket for a few hours, when I took it out it had a train ticked stuck to the screen and was quite warm and on the lock screen. It froze, so I took the battery out and restarted it. From then on it is stuck in a loop, not sure why really.
I have also read that about boot into TWRP without installing.. and it worked for many one without unlocking bootloader... Don't know why not on GNex
Click to expand...
Click to collapse
That's good to know. I'll research more than.
It seems there might be a problem with the fastboot drivers on my computer, even selecting them from device manager did not work. Win7 refuses to install. The ADB drivers in theory work fine though.

If you have done nothing modification to system, then wiping data should work, but i have doubt if it also wipes personal data too, on TWRP it wipes data excepting /data/media/ which contains all personal data.. but don't know about wiping on stock recovery...
I hope you will find solution as soon as possible..
Regards.
PS. I can install stock recovery and try wiping /data.. and check what things get wiped.. but i need little time for that experiment...

____Mdd said:
If you have done nothing modification to system, then wiping data should work, but i have doubt if it also wipes personal data too, on TWRP it wipes data excepting /data/media/ which contains all personal data.. but don't know about wiping on stock recovery...
I hope you will find solution as soon as possible..
Regards.
PS. I can install stock recovery and try wiping /data.. and check what things get wiped.. but i need little time for that experiment...
Click to expand...
Click to collapse
Thanks so much.
Looking at google's documentation on the nexus:
You can remove data from your Pixel phone or Nexus device by resetting it to factory settings. Resetting to factory settings is also known as formatting the device or doing a "hard reset".
If you're factory resetting your device to fix an issue, make sure that you've tried all other troubleshooting options first. Find out how to troubleshoot your issue.
Important: Performing a factory reset will erase all data from the device.
Click to expand...
Click to collapse
It would seem that indeed all data will be removed.
This point, I will research a bit more into drivers, in case that is what it's preventing adb pull from working.
I really need a working phone, so if that fails I will hard reset, then unlock, root, flash in an alternative bootloader and perhaps a rom, and put ubuntu touch in dual boot. That will hopefully prevent me from loosing data in the future.
Sorry, this is out of topic to my question, but, , could you suggest any stable, solid rom for the nexus?
I read good things of CM12, and I ran into one which seemed to do to quite well with split windows, but I do not remember the name right now.
EDIT: I remember the name of the rom now, it's https://omnirom.org/about/

A last question if you can..
I tried to solve my boot loop problem by sideloading an update from google (maguro yakju yakju-jwr66y-factory-4cadea65.zip)
It loaded it fine but then failed because the installation it says it is not signed.
Basically, being a stock bootloader recovery from Samsung, it will only sideload OTAs from samsung, not the stock ones from google..
I cannot find the samsung ones anywhere, not for the nexus anyway, just the newer devices..
By any chance do you know where I could download proper Samsung OTA zip updates for the nexus?

Well, I talked with an android developer who confirmed that, unless you have a friend working in criminal forensic technology or similar, there is no way to get around a lock on this phone to pull data out.
So, sadly, I have wiped my phone by unlocking it, flashed TWRP and then omnirom with gapps.
My photos are gone, including a bunch of stuff my kid had made and asked me to photograph for safeeping. Very safe indeed
He kept asking me why they make the lock like that, instead of allowing some kind of password, perhaps he has a point.
So, it is quite unlikely that somebody who knows as little as I did will ever read this *before* finding themselves in the same situation.
But if you do, back up your data, unlock and flash TWRP, clockworks or some alternative, and thank yourself if and when disaster strikes..

@mcaldo wiping data/factory reset in STOCK RECOvERY will wipe everything... There is very few chances to get backup...
And yeah i found something interesting..
You can flash system.img.. only system files will be corrected not anything else..
Get appropriate zip from here : https://developers.google.com/android/images
Now take system.img to ADB/Fastboot folder ( i assume you know how it works )
Just go "Fastboot flash system system.img"
It will rewrite system partition..
Another one:
See downloads on this thread..
One says NON-WIPE, if you want me to try that zip, i will again require time for that. See here : https://forum.xda-developers.com/galaxy-nexus/general/guide-restore-to-stock-unbrick-galaxy-t2065470
---------- Post added at 11:12 AM ---------- Previous post was at 11:09 AM ----------
I don't saw your reply, it was on next page.. its sad... Sorry i am late..

boot up pin

Hello,
Whenever i encrypt my phone on DU, when i set the lock screen Password it asks me if i want the phone to ask it to be able to boot, but then, the phone refuses to boot and says that the Password is wrong.
But when i boot into twrp the Password works and i can decrypt the data partition.
I already had the issue but with the phone accepting the boot pin but twrp not.
This is on a fresh DU install with previously formated data partition.

DO NOT encrypt via custom roms: it's cause of troubles and compatibility issues, especially when returning to OxygenOS.
So:
1) Put device in bootloader mode, plug it to computer, type fastboot format userdata via ADB terminal.
2) Go in TWRP and wipe all the partitions (be sure to have /cache formatted in ext4, otherwise change its filesystem):
3) Always from TWRP, flash latest OOS firmware (4.1.6 or OB19);
3) Reboot and configure setup with your PIN required at bootup;
4) After completing wizard, reboot in TWRP;
5) Now you can wipe anything and flash your rom.
Now device should require your PIN even at first boot of DU.
Ps until doing another fastboot format userdata, device will keep encryption.

Simone98RC said:
DO NOT encrypt via custom roms: it's cause of troubles and compatibility issues, especially when returning to OxygenOS.
So:
1) Put device in bootloader mode, plug it to computer, type fastboot format userdata via ADB terminal.
2) Go in TWRP and wipe all the partitions (be sure to have /cache formatted in ext4, otherwise change its filesystem):
3) Always from TWRP, flash latest OOS firmware (4.1.6 or OB19);
3) Reboot and configure setup with your PIN required at bootup;
4) After completing wizard, reboot in TWRP;
5) Now you can wipe anything and flash your rom.
Now device should require your PIN even at first boot of DU.
Ps until doing another fastboot format userdata, device will keep encryption.
Click to expand...
Click to collapse
Thanks for the answer, do you know why custom rom encryption doesnt work ? I used to to this on my old s5 and it worked perfectly

nikexv2 said:
Thanks for the answer, do you know why custom rom encryption doesnt work ? I used to to this on my old s5 and it worked perfectly
Click to expand...
Click to collapse
Maybe if you give his post a thumbs up he might continue helping you out , I mean that's the least you could do ......

Xceeder said:
Maybe if you give his post a thumbs up he might continue helping you out , I mean that's the least you could do ......
Click to expand...
Click to collapse
If members had to wait for thumbs up before they answer to someone's post then they wouldn't answer most of them.
What kind of **** philosophy is this, i hope for you that's not your way of thinking everyday.
And even, that's none of your business, maybe i forgot to like his post ?

Come on, do not vent on XDA, do not make useless quarrels ?
@nikexv2 sorry, but technically speaking, I don't know the reason of problematic encryption on custom roms.
Just enable encryption with official firmware and there's no other compatibility issue.
Encryption still remains when you full wipe device via recovery.
Have a good day.

nikexv2 said:
If members had to wait for thumbs up before they answer to someone's post then they wouldn't answer most of them.
What kind of **** philosophy is this, i hope for you that's not your way of thinking everyday.
And even, that's none of your business, maybe i forgot to like his post ?
Click to expand...
Click to collapse
It works like this - you ask for help and if someone gives you good advice or helps you out in any way then a quick thumbs up is appreciated , it's just courtesy but anyway I hope you get your phone sorted out ...

nikexv2 said:
Hello,
Whenever i encrypt my phone on DU, when i set the lock screen Password it asks me if i want the phone to ask it to be able to boot, but then, the phone refuses to boot and says that the Password is wrong.
But when i boot into twrp the Password works and i can decrypt the data partition.
I already had the issue but with the phone accepting the boot pin but twrp not.
This is on a fresh DU install with previously formated data partition.
Click to expand...
Click to collapse
Not sure what's wrong with your set up but I came from OOS OB19 to DU, wiped userdata to switch data to ext4, flashed DU + beans gapps (recommended for DU) then booted up, encrypted my phone via Settings > Security and set ask pin on booting device, same pin has worked on all ROMs, even tried some OOS based ones like Freedom OS CE, now on Omni + open gapps, I'm using blu spark latest recovery.

After TWRP installing OS17 I get "NO OS INSTALLED"

A bit of a strange title but that's my issue.
I have an old Umidigi A1 Pro Stock android 5.1
I installed ADB and TWRP problems here, a password is asked. But when I swipe recht I get into TWRP without password. (what is the password? and do I need one?)
Then I copied Lineage 17 for this device to the sim card and OpenGapps.
Followed the procedure from Gearallnews : NO OS INSTALLED!
https://gearallnews.com/how-to-inst...ow_to_enable_project_treble_on_UMIDIGI_A1_Pro
Followed the upgrade guide: NO OS INSTALLED!
http://theupgradeguide.com/2019/11/19/install-android-9-0-on-umidigi-f1-lineageos-16-how-to-guide/
I Wipe the phone, I click install and with TWRP, than it asks me where to install. I tell it to use the system and then it installs and I see a yellow beam that it installs.
After its done I get the question for reboot?
Yes please and then, "are you sure NO OS INSTALLED".
I click yes and the phone goes in boot loop.

eljom said:
A bit of a strange title but that's my issue.
I have an old Umidigi A1 Pro Stock android 5.1
I installed ADB and TWRP problems here, a password is asked. But when I swipe recht I get into TWRP without password. (what is the password? and do I need one?)
Then I copied Lineage 17 for this device to the sim card and OpenGapps.
Followed the procedure from Gearallnews : NO OS INSTALLED!
https://gearallnews.com/how-to-inst...ow_to_enable_project_treble_on_UMIDIGI_A1_Pro
Followed the upgrade guide: NO OS INSTALLED!
http://theupgradeguide.com/2019/11/19/install-android-9-0-on-umidigi-f1-lineageos-16-how-to-guide/
I Wipe the phone, I click install and with TWRP, than it asks me where to install. I tell it to use the system and then it installs and I see a yellow beam that it installs.
After its done I get the question for reboot?
Yes please and then, "are you sure NO OS INSTALLED".
I click yes and the phone goes in boot loop.
Click to expand...
Click to collapse
Looks like some device encryption in place. Try format data
http://theupgradeguide.com/wp-content/uploads/2019/03/advanced-wipe-768x454.jpg

kurtn said:
Looks like some device encryption in place. Try format data
http://theupgradeguide.com/wp-content/uploads/2019/03/advanced-wipe-768x454.jpg
Click to expand...
Click to collapse
I have tried that, format in EXR-X, Fat-X, I have tried them all. Sometimes I have no errors and I get OS installed, reboot? I click yes, next screen, "NO OS Installed".

eljom said:
I have tried that, format in EXR-X, Fat-X, I have tried them all. Sometimes I have no errors and I get OS installed, reboot? I click yes, next screen, "NO OS Installed".
Click to expand...
Click to collapse
You mean in TWRP? check for yourself by mounting /system and using the built-in file explorer. If you see files and folders in there you are good to go to ignore what TWRP is saying

But after install and reboot old os is stil on the phone not the new one.

eljom said:
But after install and reboot old os is stil on the phone not the new one.
Click to expand...
Click to collapse
Did you allow twrp to change system? That's first question after start of a fresh installed twrp.

Never got that question... It starts with asking a password that I don't have. When I swipe the slider I get all the buttons to do what is described in the how to's. But at the end it didn't install.

TWRP pin failed, but cannot remove pin in OS

Sadly my phone is corrupt and cant start anymore ... I want to use Newsflasher to rescue my Phone.
Before I want to use TWRP to make a backup. But I cannot enter TWRP.
As far as I understood TWRP cannot be installed on XZ2 compact, but it can be temporarily flashed (as I of course did to get my LineageOS Android 11).
But now when I flash it TWRP asks for a Password.
I just have my regular Screen Unlock Password - but if I type it in it tells me PASSWORD FAILED.
How can that be? Which other Password could it be? I dont know any ...
Obviously I would just remove the screen lock in Android. But it's corrupt x(
I want to do this before I have to do the wipe with Newflasher
If I ignore data encryption then it tells me when booting system that I have no OS installed ...
So then I will never be able to get my data back because encryption with password is still active and I cannot boot to turn it off?
And TWRP is bugged so it does not accept my real password? (How can that be omg ...)

Nothing can done now u have to flash flash a fastboot rom on your device without backup

That is
the_arxyn said:
Nothing can done now u have to flash flash a fastboot rom on your device without backup
Click to expand...
Click to collapse
That is what I was already thinking but yes let it be :/
I will use the old file that I used 2 years ago and also worked when I had to do the same.
For a strange reason it does not work when executing in the original created folder (by Xperifirm), but only if I push it on a external Hard Drive?
Otherwise it will tell FINISHED but it just took 3 seconds, which it will also do if it is played in any other folder ...
Anyways it asked me for a weird reason if I want to keep my userdata. I was thinking that there is no way to install a new OS but still keep the old data. I did it but then at the end of the Flashing it told the Sync did not work. I still booted up and it tells that it cant load the Android. So I dont know if this happened because I either left the user data intact or because that sync at the end did not work.
I'm just now scared to erase it when trying again, just in case that indeed I could safe my data.
So what is the story behind that *Erase User data Y / N*. Can I indeed keep my files this way?