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WideVine L1 lost after installing custom ROM on Q firmware
source link: https://forum.xda-developers.com/t/widevine-l1-lost-after-installing-custom-rom-on-q-firmware.4096663/#post-87321865
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WideVine L1 lost after installing custom ROM on Q firmware
keshavjain235
Member
Nov 8, 2019
HELP!!!!! I installed the latest Android 10 build (Developer V2). Then unlocked bootloader and installed TWRP and then Evolution X.
Now Widevine L1 is lost!!! Please help me with any damn method to get it back. Will do ANYTHING to get it back....
Now Widevine L1 is lost!!! Please help me with any damn method to get it back. Will do ANYTHING to get it back....
Tianhe
Senior Member
Mar 16, 2011
Do you have the backup of persist partition when your phone was L1 ? If yes, then try restoring it.HELP!!!!! I installed the latest Android 10 build (Developer V2). Then unlocked bootloader and installed TWRP and then Evolution X.
Now Widevine L1 is lost!!! Please help me with any damn method to get it back. Will do ANYTHING to get it back....
keshavjain235
Member
Nov 8, 2019
No I don't have. I have searched in various telegram groups to take persist backup on someone else (same device) and change serial number in it? Should I try that? There were people complaining that they were not able to install/update stock rom after doing this process. Please GUIDE, I am a beginner in these things....Do you have the backup of persist partition when your phone was L1 ? If yes, then try restoring it.
Tianhe
Senior Member
Mar 16, 2011
You could try that but I am not sure if that would restore the wiped DRM keys. In some phones (Moto G5 Plus?), backup of persist from other phones would do no good.No I don't have. I have searched in various telegram groups to take persist backup on someone else (same device) and change serial number in it? Should I try that? There were people complaining that they were not able to install/update stock rom after doing this process. Please GUIDE, I am a beginner in these things....
Also you can try flashing stock ROM through AFT and see if it helps you.
An please REMEMBER TO TAKE BACKUP before attempting any of the above methods.
keshavjain235
Member
Nov 8, 2019
You could try that but I am not sure if that would restore the wiped DRM keys. In some phones (Moto G5 Plus?), backup of persist from other phones would do no good.
Also you can try flashing stock ROM through AFT and see if it helps you.
An please REMEMBER TO TAKE BACKUP before attempting any of the above methods.
Already tried flashing stock rom via AFT, but Widevine stays at L3. I am not risking to flash persist of other device as it may lead to further issues. Please let me know if there is some more efficient way out of this issue. Thanks.
Last edited: May 9, 2020
farhanshaikh671
Senior Member
Sep 10, 2015
Bangalore
I heard flashing q firmware permanently causes issues with widevine l1. The only way to bring it back is to restore a previous persist backup or flash a qfil rom (not sure about the latter). If you don't have a backup, too bad chief.
Tianhe
Senior Member
Mar 16, 2011
Partially correct. QB1 update caused widevine downgrade to L3 but QB2 restored it to L1. Of course, you have to be bootloader locked all the time. Too many theories going around to restore L1 on UBL but none proven, even persist backup method isn't 100%I heard flashing q firmware permanently causes issues with widevine l1. The only way to bring it back is to restore a previous persist backup or flash a qfil rom (not sure about the latter). If you don't have a backup, too bad chief.
parvez1119eee
New member
May 12, 2020
how to install qb2 bro please help need widevine
Partially correct. QB1 update caused widevine downgrade to L3 but QB2 restored it to L1. Of course, you have to be bootloader locked all the time. Too many theories going around to restore L1 on UBL but none proven, even persist backup method isn't 100%
how to install qb2 and iam trying qfil
mine too lost L1 certification after flashing Havoc os latest build 3.5, also charging issue, charges very slow, apprx. 5-6 hrs for fullcharge my asus.how to install qb2 and iam trying qfil
Total Overdose
Senior Member
Oct 23, 2016
how to install qb2 bro please help need widevine
how to install qb2 and iam trying qfil
After installing QFIL rom did L1 comes back.
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