Hello,
I will try to summarize all the steps I followed :
1) I got H815 rooted with unlocked bootloader, I got bootloop and managed to make TWRP full backup before sending my phone to repair
2) got the phone from repair (with exchanged motherboard) and asked LG developer to be able to issue a new UNLOCK.bin file
3) flashed the file and got the unlocked bootloader....
4) Installed TWRP and backed up all partitions
5) restored ALL partitions of my old restore file
5) rebooted and noticed that google play was not installed, then got bootloop with "secure booting error"
6) Entered download mode and refurbish with a KDZ file V20D
7) phone boots correctly but I do not have unlocked bootloader and the unlock.bin that I generated is said to be wrong...
What should I do now ?
Thanks for your help !
If download mod working do kdz flash.
I did download mode and flashed KDZ file with success but still :
I "lost" unlocked bootloader
flash of unlock.bin is now impossible
Imei displayed with *#06# is 0
I believe that I need to restore the new EFS partition that I saved with TWRP... But do not know how to do it without TWRP....
Is there a way to flash EFS with modified KDZ ?
Update :
I finally managed to get the IMEI back using QPST.
I could also reflash unlock.Bin and do all.
I hope that this will help someone stuck as I was !
What is QPST?
It stands for Qualcomm Professionnal (?) Support Tool.
Related
I think I now understand my mistakes, but I'd love to hear it if there's a way around this. I have the International version H815. My plan was to end up with a rooted version of Marshmallow. At the beginning of the day, I was not so clear about the difference between unlocking and rooting. I followed directions to install a rooted version of Lollipop. That went well. I flashed TWRP but couldn't figure out why that didn't work until I figured out that the bootloader should have been unlocked first. I then went through most of the steps to officially unlock the phone, but my phone just hangs at a fastboot intro screen using the abd reboot bootloader command, so I can't use the fastboot utility to recover the device ID I would need to get an unlock code. And I can't get into the original recovery menu using the power-volume down keys. I think I overwrote the stock Recovery utility when I flashed TWRP from within a rooted system. Switching back to a stock kdz didn't help. The phone still works fine otherwise, but now I see no path to unlocking it and then installing TWRP to load a rooted 6.0 image. Should I just give up now, or are there any other options?
Thanks,
Jim
Got it working
I reinstalled the rooted image and flashed a stock recovery.img. That didn't work. Then I went back to stock with a different kdz image. I still couldn't access the recovery tools with the power and volume down buttons, but I was a able to get fastboot functioning and got the unlock code from LG and entered it - now to see if I can go back to an unlocked system and install TWRP to upgrade to Marshmallow.
So I followed all the right steps to getting the bootloader unlocked, installing TWRP as the custom recovery and installing SuperSU root. Now I'm stuck in a bootloop with no way to access the bootloader from ADB... Hardware access to the bootloader doesn't work. I get the bootloader unlocked notification but then it goes straight into boot. Windows recognises that there's a device there but I can't access the files and see it in adb... Feeling very lost with this
I had a similar issue. TWRP installed correctly, flashed SuperSU. Unable to boot - phone stuck on the initial splash screen.
In the end I had to us LGUP to flash a suitable KDZ file and resurrect the handset. Read more about it here: http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Curiously, I have greater success using adb and fastboot on a Mac than I do on Windows 10 from which Fastboot resolutely refuses to communicate with the phone.
Hello everyone. I need help from anyone that can offer. I have a duk-al20 and tried to rebrand it to duk-al09 c900. Now initially manage to unlock bootloader and flash twrp recovery. Then i flashed oem info through twrp and there it all started. It supposed that my phone would reboot after that but it got stuck at erecovery saying that i should update to the latest version and restore. Anyway after a lot of attempts i used dc unlocker and finaly flashed through update the firmware for duk-al09 c900. Now the problem is that my device has no imei (000000000000) and i can not use it. I can not flash twrp either cause it gives an error "Failed: remote image verification error". Please please help me out cause i am despert.
Use HCU CLIENT to change serial and IMEIs. It will cost you 15$.
That's all I can think of
Tomorrow i will sent my Phone to lg service cause double tap to wake doesn't work well. It's a known bug. I have unlocked bl and custom rom nougat. I have to install v20g cause it's the latest German Firmware. Here is my Plan:
1. Backup all my data to pc and cloud
2. Remove sd card and sim.
3. put sim in my backup phone (g2)
4. flash kessaras mm bootloader and modem via twrp
5. restore a twrp 20p backup
6. flash v20g via lgup
7. relock bootloader as this manual show (post 1)
https://forum.xda-developers.com/showthread.php?t=3660282
Will this work? Am i able to unlock bl after getting my phone back? I saved unlock.bin.
stefan.kurz said:
Tomorrow i will sent my Phone to lg service cause double tap to wake doesn't work well. It's a known bug. I have unlocked bl and custom rom nougat. I have to install v20g cause it's the latest German Firmware. Here is my Plan:
1. Backup all my data to pc and cloud
2. Remove sd card and sim.
3. put sim in my backup phone (g2)
4. flash kessaras mm bootloader and modem via twrp
5. restore a twrp 20p backup
6. flash v20g via lgup
7. relock bootloader as this manual show (post 1)
https://forum.xda-developers.com/showthread.php?t=3660282
Will this work? Am i able to unlock bl after getting my phone back? I saved unlock.bin.
Click to expand...
Click to collapse
If they replace the mother board then no. Will have same iemi but diffrent oem id and diffrent unlock.bin u will have to update with lg the new id
So i can follow the Instruction to unlock bl once more and receive a new unlock.bin?
But why they should replace the Motherboard cause of a double tap issue?
stefan.kurz said:
Tomorrow i will sent my Phone to lg service cause double tap to wake doesn't work well. It's a known bug. I have unlocked bl and custom rom nougat. I have to install v20g cause it's the latest German Firmware. Here is my Plan:
1. Backup all my data to pc and cloud
2. Remove sd card and sim.
3. put sim in my backup phone (g2)
4. flash kessaras mm bootloader and modem via twrp
5. restore a twrp 20p backup
6. flash v20g via lgup
7. relock bootloader as this manual show (post 1)
https://forum.xda-developers.com/showthread.php?t=3660282
Will this work? Am i able to unlock bl after getting my phone back? I saved unlock.bin.
Click to expand...
Click to collapse
Update:
Flash a mm rom and lock bl didn't work. Flash stock v29a by twrp, lock bl and Flash v20p with lgup works.
stefan.kurz said:
So i can follow the Instruction to unlock bl once more and receive a new unlock.bin?
But why they should replace the Motherboard cause of a double tap issue?
Click to expand...
Click to collapse
Hello,
yes, it works. (I did it, as many others I guess! )
You will just need somme patience after your first email to LG, then after some days, you just do the normal procedure and it will work !:good:
stefan.kurz said:
Tomorrow i will sent my Phone to lg service cause double tap to wake doesn't work well. It's a known bug. I have unlocked bl and custom rom nougat. I have to install v20g cause it's the latest German Firmware. Here is my Plan:
1. Backup all my data to pc and cloud
2. Remove sd card and sim.
3. put sim in my backup phone (g2)
4. flash kessaras mm bootloader and modem via twrp
5. restore a twrp 20p backup
6. flash v20g via lgup
7. relock bootloader as this manual show (post 1)
https://forum.xda-developers.com/showthread.php?t=3660282
Will this work? Am i able to unlock bl after getting my phone back? I saved unlock.bin.
Click to expand...
Click to collapse
You can lock your device by flashing the misc partition only! This works on every firmware. Best is you have a backup by TWRP ( latest TWRP can save lock/unlock state) or by the DLM backup (which I would do before sending the device back).
Do you expect they will investigate that issue and then release a software or even hardware fix? :laugh:
..serious.. Do you REALLY think they will do a single thing regarding our 2015 phone about an unimportant feature which works but not always? I mean the best which would happen is that they exchange the mainboard and yes this has nothing to do with the d2w issue. It's just the only thing they will do now if they do anything!
Yes you can unlock again officially but it may not work directly over the website after mainboard got replaced (of they would do) but you can contact LG support by mail and they will help you out then.
sfX
Sent from my LG-H815 using XDA Labs
steadfasterX said:
You can lock your device by flashing the misc partition only! This works on every firmware. Best is you have a backup by TWRP ( latest TWRP can save lock/unlock state) or by the DLM backup (which I would do before sending the device back).
Do you expect they will investigate that issue and then release a software or even hardware fix? [emoji23]
..serious.. Do you REALLY think they will do a single thing regarding our 2015 phone about an unimportant feature which works but not always? I mean the best which would happen is that they exchange the mainboard and yes this has nothing to do with the d2w issue. It's just the only thing they will do now if they do anything!
Yes you can unlock again officially but it may not work directly over the website after mainboard got replaced (of they would do) but you can contact LG support by mail and they will help you out then.
sfX
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
I hope your wrong and they find (and search) a solution. It works really fine on my old g2.
Android 6 EMUI 4... Google Drive Link:
https://drive.google.com/open?id=1o3V4UnqIWQcur792UfXfDNJ7FkNocpN3
It is in RAR format only 1 GB...
Enjoy
Afzal922 said:
Android 6 EMUI 4... Google Drive Link:
It is in RAR format only 1 GB...
Enjoy
Click to expand...
Click to collapse
My bootloader got relocked after flashing your backup. Can't boot into recovery. Getting errors about flashing verfied image (no TWRP). OS boots into glitches. My phone got bricked and don't know how to recover it as bootloader relocked.
Hacker105 said:
My bootloader got relocked after flashing your backup. Can't boot into recovery. Getting errors about flashing verfied image (no TWRP). OS boots into glitches. My phone got bricked and don't know how to recover it as bootloader relocked.
Click to expand...
Click to collapse
Use your Unlocking code to reunlock your Phone
That Backup is working perfectly on my phone, I do not know why this happened to you... I am sorry...
Does it work for gx8 L-03?
Just try I'm not sure
Bootloader unlock
Hi afazl please give me your bootloader unlock code because my sn is changed to your backup thanks
P
phone blocked
please give me your bootloader unlock code my phone is blocked after flashind your recovery i"m on g8 and my serial MUYDU15A16000973 please help by sending the unlock num to my email [email protected] i'm tunisian journalist
Bootloader Code
Bootloader code must be 14 times zero. 00000000000000