Develop Bugs

Unlocked, S-On, No OS - flash stock?

Hey guys,
I want to buy a phone and it got some little problems:
Unlocked bootloader
s-on
Can boot into fastboot and TWRP.
Stucks at HTC logo (/system folder got deleted...)
Do I see it right, that I could simply install the stock version from here:
http://forum.xda-developers.com/showthread.php?t=2694994
With going into fastboot and do:
"fastboot flash recovery recoveryfilename.img" ?
or does this not work when the bootloader is unlocked?
I hope someone is able to help me
regards

GodzZz said:
Hey guys,
I want to buy a phone and it got some little problems:
Unlocked bootloader
s-on
Can boot into fastboot and TWRP.
Stucks at HTC logo (/system folder got deleted...)
Do I see it right, that I could simply install the stock version from here:
http://forum.xda-developers.com/showthread.php?t=2694994
With going into fastboot and do:
"fastboot flash recovery recoveryfilename.img" ?
or does this not work when the bootloader is unlocked?
I hope someone is able to help me
regards
Click to expand...
Click to collapse
If you have TWRP flashed already then head over to COLLECTION of Stock backup's and grab the nandroid backup applicable to your device. If you still have access to the SDcard on device you can place it UNZIPPED/UNPACKED into the backup folder for TWRP TWRP/Backups/serialnum/ just replace serialnum with the serial number of your device which you can find even on the box... or simply opening a command prompt in adb/fastboot folder and typing fastboot devices it'll then show you device number if device gets picked up. If you have an external SD card same thing, unzip downloaded nandroid backup into folder /storage/ext_sd/TWRP/BACKUPS/SERIALNUM/
From there you can just go ahead and restore the nandroid backup through TWRP.

Great, thanks for your replay.
In this case I will buy the phone

Bricked LG G4 H810 [mmcblk0p24, mmcblk0p24 & mmcblk0p25 Partitions Corrupt]

Hey guys, I think I may have permanently bricked my device :/ As it is a H810 there is no recovery available so I can only enter download-mode and fast-boot mode. Basically I accidentally flashed the wrong files
dd if=/sdcard/modemst1.img of=/dev/zero of=/dev/block/mmcblk0p24
dd if=/sdcard/modemst2.img of=/dev/zero of=/dev/block/mmcblk0p25
dd if=/sdcard/modemst3.img of=/dev/zero of=/dev/block/mmcblk0p26
as I transferred the incorrect backed-up files from my computer (I ended up flashing my friends H815 backed up files by mistake). This meant that the phone was unable to boot and is now stuck in a boot loop. I have tried flashing the partitions using fastboot flash mmcblk0p24 modemstl1.img without success and in download mode the device is not recognised so I cannot perform an adb push/pull command.
Thankfully I do have the correct img files to flash back on my computer but I cannot figure out how to actually transfer them to the device. A side note- LGUP does work successfully to flash a stock TOT file to Lolipop so if that is able to copy the new ROM to the device and flash the system partition there might be a way to transfer the files over. The only problem I can see is there really is no way to unlock the bootloader and as the files are not 'stock' this may not be possible.
If anyone has any ideas that would be greatly appreciated. Cheers.

But if LGUP is working for you, why dont you use the option to "upgrade" the phone to the version of the ROM you were using ?

My lg g4 h810 is stuck in fastboot mode not recovery mode not downloading please any one have any idea

Urgent help needed. Flashed wrong system image

I mistakenly flashed my boot.img to system image instead of boot image in recovery. Now my device is stuck at fastboot mode and can't get anywhere. Even fastboot devices, adb devices commands aren't working . How can I restore my system image?

mohitshahh1 said:
I mistakenly flashed my boot.img to system image instead of boot image in recovery. Now my device is stuck at fastboot mode and can't get anywhere. Even fastboot devices, adb devices commands aren't working . How can I restore my system image?
Click to expand...
Click to collapse
Search for the Mega Unbrick Guide within the OP3 forum on XDA and use the tool given therein. There are also a couple of later versions of the Tool with later OOS versions. You can search for them also. Two important points: The Tool is different for OP3 & OP3T. Don't mix them up. Likewise the Tool version is specific for a particular OOS version.
You may have to try a few times repeatedly before you succeed in unbricking the phone. It may not happen the first time but don't lose heart.
Good Luck!

LG G8 G820UM stuck unlocking bootloader plz help?

Hi and thanks for reading--
I followed this guide for my new LG820UMBK Verizon Unlocked:
Guide LG G8/G8x/v50 Bootloader Unlock and Magisk Root using Firehose
Disclaimer: I am not responsible for any problems from using this guide. Works for G8, G8s, G8x, and v50 Confirmed working on G8 and v50 Requirements: Android 10 QFIL...
forum.xda-developers.com
I flashed the engineer abl_a and abl_b and my first hangup was to enter Fastboot mode I hold Vol+ instead of Vol- as the guide says. But it tooks several reboots and flashing back to the backup abl to figure that out. My device in Fastboot mode isnt recognized by my PC with the fastboot devices command. It is recognized by Device Manager however as Other devices: Android.
Upon boot it gets stuck at VZW splash screen. I can enter EDL mode but when I try to restore my backup abl_a+b it says Data Overflow do you wish to continue. If I select yes it wont flash the backup abl with the size of 32,768 kb. It leaves the abl files at 1,024 kb which was the size of the engineer file.
I can boot to Fastboot but my fastboot devices commands can't see the device. In Device Manager like I said in Fastboot mode it just shows up as Other Devices: Android. On the Verizon spash screen it appears in Device Manager as LGE AndroidNet USB Serial Port (COM3) and in EDL mode it shows up under Ports as: Qualcomm HS-USB QDLoader 9008 (COM11).
I ran the LG Mobile Support Tool and it installed all the proper drivers it says. Maybe I dont have the adb/fastboot drivers? I tried to find them in the SDK but its way more complicated than it used to be. I havent rooted since the LG G2 lol.
Any ideas or help would be so awesome. Its basically bricked cause I cant flash the ABL backups. LGUP program doesn't recognize the device, I did download the correct G820UM20i_00_VZW_US_OP_1124.kdz file so maybe i'll just attempt to restore the stock rom. Can I do that with QFIL??
I cant believe I'm the only person this happened to....
Thanks for any thoughts!!

durrant111 said:
Hi and thanks for reading--
I followed this guide for my new LG820UMBK Verizon Unlocked:
Guide LG G8/G8x/v50 Bootloader Unlock and Magisk Root using Firehose
Disclaimer: I am not responsible for any problems from using this guide. Works for G8, G8s, G8x, and v50 Confirmed working on G8 and v50 Requirements: Android 10 QFIL...
forum.xda-developers.com
I flashed the engineer abl_a and abl_b and my first hangup was to enter Fastboot mode I hold Vol+ instead of Vol- as the guide says. But it tooks several reboots and flashing back to the backup abl to figure that out. My device in Fastboot mode isnt recognized by my PC with the fastboot devices command. It is recognized by Device Manager however as Other devices: Android.
Upon boot it gets stuck at VZW splash screen. I can enter EDL mode but when I try to restore my backup abl_a+b it says Data Overflow do you wish to continue. If I select yes it wont flash the backup abl with the size of 32,768 kb. It leaves the abl files at 1,024 kb which was the size of the engineer file.
I can boot to Fastboot but my fastboot devices commands can't see the device. In Device Manager like I said in Fastboot mode it just shows up as Other Devices: Android. On the Verizon spash screen it appears in Device Manager as LGE AndroidNet USB Serial Port (COM3) and in EDL mode it shows up under Ports as: Qualcomm HS-USB QDLoader 9008 (COM11).
I ran the LG Mobile Support Tool and it installed all the proper drivers it says. Maybe I dont have the adb/fastboot drivers? I tried to find them in the SDK but its way more complicated than it used to be. I havent rooted since the LG G2 lol.
Any ideas or help would be so awesome. Its basically bricked cause I cant flash the ABL backups. LGUP program doesn't recognize the device, I did download the correct G820UM20i_00_VZW_US_OP_1124.kdz file so maybe i'll just attempt to restore the stock rom. Can I do that with QFIL??
I cant believe I'm the only person this happened to....
Thanks for any thoughts!!
Click to expand...
Click to collapse
So I forgot to eject my micro SD card, I know so dumb. I am now able to fastboot. I tried to flash the original abl_a and b with fastboot and it is telling me Error Flashng Partition: Volume Full. Same issue I was having in QFIL basically. How do I restore the abl files ughhhhh.

you can fomat data : - and power before click power

durrant111 said:
So I forgot to eject my micro SD card, I know so dumb. I am now able to fastboot. I tried to flash the original abl_a and b with fastboot and it is telling me Error Flashng Partition: Volume Full. Same issue I was having in QFIL basically. How do I restore the abl files ughhhhh.
Click to expand...
Click to collapse
Boot to EDL mode by holding the vol - and power button while your G8 is plugged in your computer, after you hear a disconnection sound immediately press the vol + until you hear a connection sound from your computer.
Now, open QFIL then look for the abl a and b then flash your backed up abl_a nd abl_b accordingly and reboot. And you're good to go again.

I can help you. Do you fix problem ???

I am having some issues with rooting my g8 at&t I managed to successfully unlock the bootloader but now I am stuck in a bootloop after trying to flash magisk. I can start in edl mode or download mode and that is all. My phone flashes the lg splash screen for a split second over and over it doesn't matter if I flash my backup adl files or boot files it just keeps doing the same thing. What am I missingm

Anybody?

Ratty696 said:
Anybody?
Click to expand...
Click to collapse
.

Ratty696 said:
I am having some issues with rooting my g8 at&t I managed to successfully unlock the bootloader but now I am stuck in a bootloop after trying to flash magisk. I can start in edl mode or download mode and that is all. My phone flashes the lg splash screen for a split second over and over it doesn't matter if I flash my backup adl files or boot files it just keeps doing the same thing. What am I missingm
Click to expand...
Click to collapse
Gonna need more details. What steps did you take to try to flash magisk that resulted in the bootloop?

armodons said:
Gonna need more details. What steps did you take to try to flash magisk that resulted in the bootloop?
Click to expand...
Click to collapse
Used method in beginning of this thread. Tried flashing backup
armodons said:
Gonna need more details. What steps did you take to try to flash magisk that resulted in the bootloop?
Click to expand...
Click to collapse
I used the method in that thread to unlock and try to root. When I flashed majisk is when my problem started. I have tried flashing the backup files I made but that doesn't help either

Ratty696 said:
Used method in beginning of this thread. Tried flashing backup
I used the method in that thread to unlock and try to root. When I flashed majisk is when my problem started. I have tried flashing the backup files I made but that doesn't help either
Click to expand...
Click to collapse
So you are saying you bootloop after you use QFIL to flash Magisk-patched boot_a and boot_b? Do "backup files" mean the original boot_a and boot_b that you flash back using QFIL?
If so, you should double check you are flashing the correct partitions in QFIL because neither of these steps seem like they can result in bootloop. LGUP and start over.

armodons said:
So you are saying you bootloop after you use QFIL to flash Magisk-patched boot_a and boot_b? Do "backup files" mean the original boot_a and boot_b that you flash back using QFIL?
If so, you should double check you are flashing the correct partitions in QFIL because neither of these steps seem like they can result in bootloop. LGUP and start over.
Click to expand...
Click to collapse
Yes when I used QFIL to flash magus isvwgen it started abd flashung original boot_a and boot_b dont fix it. I can't get kdz file for at&t to lg up.

Ratty696 said:
Yes when I used QFIL to flash magus isvwgen it started abd flashung original boot_a and boot_b dont fix it. I can't get kdz file for at&t to lg up.
Click to expand...
Click to collapse
Is there any place to get the KDZ file for the AT&T g8? I got someone claiming to have it but want me to prepay $30 for it

Nobody able to help me?

Ratty696 said:
Nobody able to help me?
Click to expand...
Click to collapse
I'm new to the G8 (not LG), so just now browsing these posts.
First and foremost, this thread shouldn't be in this forum. This forum is for roms, kernels, recoveries and other development.
This thread is a question about a guide (which is in guides forum). This 'question' is not development of a rom, kernel or recovery, it's a question.
I'd suggest, if you want people to respond that can help, ask the question in it's individual guide thread, that's where the people that know the most about it will be. If you get no response in that thread, then maybe think about posting the question in the questions forum.
but here? in dev forum? absolutely the wrong place for a question about a guide.
cheers

Thread moved to Q&A section.
Thanks!
woodman
Senior Moderator

@durrant111
So to the original OP; 2 things; If your device isn't recognized when in fastboot mode, that's because you don't have the right driver installed in WinBlows.
You have to download the LG USB drivers, install them, then in device manager select the "! Android" and install the driver (usually says ADB) and then 'fastboot devices' will see the phone.
Second; if you ever get a message telling you that 'Data Overflow' then you are absolutely making a big mistake. When you did the backup of your abl(s) (and other partitions), you should have renamed then one by one, that way you don't make the mistake of naming the laf_a partition as the abl_a partition (or any name other than what ti should be). If you flash the wrong partition you run the risk of overwriting the nearby partition, which would make the device essentially unusable except only to qfil.
Lastly, yer lucky the device is VZW, as they make their kdz available and you can use use lg up to get back to stock. If it was Sprint or At&t you'd be scrambling to find a qfil or bkerler backup someone luckily made that you come across (a much more unlikely scenario).
Good luck, you've probably already moved on from this, but just in case, thought I'd mention the above.
cheers

Ratty696 said:
Is there any place to get the KDZ file for the AT&T g8? I got someone claiming to have it but want me to prepay $30 for it
Click to expand...
Click to collapse
Unfortunately at&t doesn't make their kdz available. You can be 99.9% positive the only thing this person that wants to charge you 30$ is going to give you is the partitions backed up by qfil or bkerler edl stuff.
With both at&t and sprint, because no kdz, you can only restore (if you didn't back up the files yourself originally), with someone elses backup, and then you have to use qfil or bkerler edl utilities to restore. If you look around in the G8 forums (or the tele group), there's a decent chance someone has already make their backup available.
cheers and good luck.

Ratty696 said:
Nobody able to help me?
Click to expand...
Click to collapse
Could you solve your problem?
I also have an at&t lg g8 and I want to unlock the bootloader

Yarib said:
Could you solve your problem?
I also have an at&t lg g8 and I want to unlock the bootloader
Click to expand...
Click to collapse
Lol no still haven't solved my problem. I need the abl_a and abl_b files for a lg g8 at&t. My phone only goes in fastboot or qfil and Fastboot says its a lmg850um because I tried using the files from my lg g8x and it didn't work. I have also now bricked my lg g8x it only boots into qfil. Any help would be great. My g8x is canada version

Recovering data on a DEAD Redmi Note 8 PRO

Hello,
I hope this is the right section for this post.
I've been using a Note 8 Pro with zero issues until one week ago when I accidentally dropped the phone in the water.
After a few seconds submerged the display turned off and I felt an intense heat coming from the zone of the battery.
Having no chance to recover the phone (tried with Isopropyl Alcohol too) I decided to open it and manually dry/clean each component, having seen the situation inside gave me the phone is dead but I still want to recover some pictures/data from it.
Before opening the open Minitool was not detecting any device on my Windows Laptop, after cleaning each component Minitool is instead detecting the phone via USB, but I still can't extract any data because the "Usb debugging" option is not tuned on (and no the device is not rooted).
Is there any option to extract data from the phone? There's a way to turn on USB Debugging via ADB on a non-rooted phone?
Thanks,
Andrea.

how about trying your luck with a service ? most of the time they do have access to special programs, which have a better functionality than adb.

Thanks for the hint, but I am not happy with the idea of someone playing with my data

1. Try reboot phone to recovery
2. Connect it to your computer (download Platform-tools)
3. In the folder with Platform-tools open cmd
4. In cmd - adb shell
5. cd storage/emulated/0
6. ls
7. Now, using the commands, drag files from your phone to your PC

Thanks for your hint.
No luck so far, I think because the phone is not in recovery mode.
I can hear the phone starting up several times (hear the jingle) so I think it's in a reboot loop and I don't know how to boot it into recovery mode wo a working display (tried with power/volume up combination with no luck).
From the windows taskbar I can see that the phone is recognized for a few seconds before it restarts.
EDIT: trying to switch the phone on with the combination "power/volume down" brings to a kind of stable state and I can now see the phone in the windows taskbar recognized as a generic "android device". Still no luck when trying to access the phone as there's no device in windows and no device obtained through "adb devices" command.
EDIT1: I think that the phone is in "FASTBOOT" mode. If I type "fastboot devices" I can see it detected but still can't access it.

Any idea? Should I give up?

If it's popping up and down you need something to keep track.
You can try my UsbLog.exe (in the sig), it just sits there and shows what devices appear (if they have a driver) and disappear.
Try these to see if anything is working:
Code:
C:\>fastboot devices
C:\>fastboot getvar all
C:\>fastboot oem device-info

Yes it's popping up and down when it's booted in recovery mode whilst is stably connected when in fastboot mode but in this case I can't access the internal memory of the device.
I didn't get the purpose of logging the devices connecting to the USB as I can see the device connected for a while and correctly recognized as Redmi Note 8 pro but as it keeps popping out windows have no time to show it's folder.
As for the code you wrote: i will try asap but already tried with "fastboot devices" and I get the phone correctly listed but still can't access its memory as told.

Renate said:
If it's popping up and down you need something to keep track.
You can try my UsbLog.exe (in the sig), it just sits there and shows what devices appear (if they have a driver) and disappear.
Try these to see if anything is working:
Code:
C:\>fastboot devices
C:\>fastboot getvar all
C:\>fastboot oem device-info
Click to expand...
Click to collapse
After rebooting the phone in fastboot mode I can see it recognized as a generic android device from windows (still can't access the storage folder of the device).
fastboot devices----> I get the device listed with a series of numbers/letters
fastboot getvar all---> I get a list of information on token/token version/partition type and size/baseband/bootloader etc.
fastboot oem device-info----> FAILED (remote: unknown command)
So I think it's clear that the device is in Fastboot mode and instead is in a boot loop when started in revocery mode.
Is there a way to extract data from fastboot mode?
Thanks,
Andrea.

If you put a custom recovery on it in the first place you can try reflashing recovery from fastboot.
Fastboot doesn't allow you to read anything.
oem device-info is obviously an oem command that might not be on any device.
You've got a Mediatek processor. That has some low level equivalent to Qualcomm EDL, but I have no experience with that.
If you can get there you can download the user data partition, but it's probably encrypted. Also no experience with that.
The easiest is if you can get the system to mount/decrypt the partition.
You've tried the normal system too?
Is this A/B? Have you tried changing slots?
How much time does it stay up in recovery? Do you have ADB? Maybe try:
Code:
# stop recovery
Does that prevent it from looping?

So I should try to flash a custom recovery like TWRP for example?
What you mean with "normal system too"?
Changing slots you mean changing usb port?
It stays in recovery less than one second so I can't give any command via ADB.
EDIT: cant' flash any custom recovery because the bootloader is locked.
If I Try to unlock the bootloader via MiUnlock I get a warning saying that all data will be erased.
Any idea on how to unlock the bootloader wo wiping all the data?

Sephiroth79 said:
So I should try to flash a custom recovery like TWRP for example?
What you mean with "normal system too"?
Changing slots you mean changing usb port?
It stays in recovery less than one second so I can't give any command via ADB.
EDIT: cant' flash any custom recovery because the bootloader is locked.
If I Try to unlock the bootloader via MiUnlock I get a warning saying that all data will be erased.
Any idea on how to unlock the bootloader wo wiping all the data?
Click to expand...
Click to collapse
There is a mediatek bootloader unlocked you just have to boot in Brom mode and it'll unlock it please follow this
PS: press all buttons

MysticNoOb said:
There is a mediatek bootloader unlocked you just have to boot in Brom mode and it'll unlock it please follow this
PS: press all buttons
Click to expand...
Click to collapse
My bootloader is unlocked!
Thank you very much.
Now I am going to try to flash a custom recovery mode via fastboot in order to access the internal memory of the phone.
EDIT: I've just flashed twrp-3.6.2_9-0-begonia.img but still can't boot into recovery mode.
Any hint on how to extract data from the system now?

You really want to boot the normal system because that's the best way to get decrypted data.
I realized that you don't have ADB enabled there.
You should look at B. Kerler's https://github.com/bkerler/mtkclient/
If you can pull the boot image off your device then I might be able to fix it so that you have ADB.
You'd have to flash it back in fastboot or mtkclient.
You can also pull a copy of userdata off the device with mtkclient.
As far as booting into recovery, there's a way.
Here's how, if you don't have A/B (that is you flashed TWRP into recovery and not recovery_a or recovery_b)
then you can fastboot flash a special file into the misc partition and it wil boot into recovery next reboot.
To return things to normal you have to flash the empty file to the misc partition.
Code:
C:\>fastboot flash misc misc-rec.img
C:\>fastboot reboot
Only do this if you don't have partitions that end in _a or _b

I really don't know if I have partitions A and B as you mentioned and I think there's no way to check actually.
I confirm I don't have "USB Debugging" active on the phone.
So if I understand correctly I should do the following:
- Flash misc-reg.img via Fastboot
- Boot into recovery just rebooting the system after flashing the above file;
- use MTKclient to dump userdata or boot image to enable ADB on (I will need help with mtkclient I suppose).
Is it correct?
EDIT: flashed TWRP first and misc-rec then rebooted via Fastboot/Reboot but nothing happens.

Sephiroth79 said:
My bootloader is unlocked!
Thank you very much.
Now I am going to try to flash a custom recovery mode via fastboot in order to access the internal memory of the phone.
EDIT: I've just flashed twrp-3.6.2_9-0-begonia.img but still can't boot into recovery mode.
Any hint on how to extract data from the system now?
Click to expand...
Click to collapse
TWRP cant boot because you used wrong one. Search again in that unlock bootloader channel and use suitable one.

Kirasu2080 said:
TWRP cant boot because you used wrong one. Search again in that unlock bootloader channel and use suitable one.
Click to expand...
Click to collapse
Hmmm, I am almost sure that the TWRP I've flashed was listed under Redmi Note 8 pro page. Can you please indicate more precisely where should I sera
EDIT: I think I've downloaded and flashed the correct TWRP file.
@Renate can you please detail your method so I can try to extract data from the phone?

Sephiroth79 said:
Hmmm, I am almost sure that the TWRP I've flashed was listed under Redmi Note 8 pro page. Can you please indicate more precisely where should I sera
EDIT: I think I've downloaded and flashed the correct TWRP file.
@Renate can you please detail your method so I can try to extract data from the phone?
Click to expand...
Click to collapse
1/Yeah it's official. You "flashed correct TWRP." Downgrade to Miui Android 9 (_9 in it's name) to boot into that TWRP and lose your data.
2/In unlock bootloader video above, search other video in his channel playlist and find TWRP video suitable for your Miui version.

Kirasu2080 said:
1/Yeah it's official. You "flashed correct TWRP." Downgrade to Miui Android 9 (_9 in it's name) to boot into that TWRP and lose your data.
2/In unlock bootloader video above, search other video in his channel playlist and find TWRP video suitable for your Miui version.
Click to expand...
Click to collapse
Can't find the right video, can you kindly send me a link (I am on the latest Miui version and I am in Europe)?
In all the videos I've seen on his page he is using the device to install TWRP etc.
I think I just need the correct TWRP version for my MIUI release and then I'll flash TWRP and misc-reg.img. Is it right?

Sephiroth79 said:
Can't find the right video, can you kindly send me a link (I am on the latest Miui version and I am in Europe)?
In all the videos I've seen on his page he is using the device to install TWRP etc.
I think I just need the correct TWRP version for my MIUI release and then I'll flash TWRP and misc-reg.img. Is it right?
Click to expand...
Click to collapse
Use brp 3.5.2 v3.1 or V3.6 to decrypt Miui 12.5