Chimera please help samsung s21 5g g991u after update bit 12 (C) touch not working and can not dowgrade at all

[Dvdaio]

please help samsung s21 5g g991u after update bit 12 (C) touch not working and can not dowgrade at all
i tried all
so how to downgrade by edl or how to fix that because no solution never ever with all tools
the problem tp firmware is n/a so even firmware touch you can write so is there any sepcific file we can write via edl to fix that


Chimera Mobile Phone Utility version: 40.38.1026 @ 2024-08-22
Printing phone history

Repair Boot
8/22/2024
12:18
PM

Restore / Store backup
8/22/2024
12:16
PM

Restore / Store backup
8/22/2024
12:16
PM

Root
8/22/2024
12:15
PM

Update Firmware
8/21/2024
1:30
PM

Get info
Phone information
Model: SM-G991U
Manufacturer: samsung
Brand: samsung
Android information
Version: 14
SDK: 34
Security patch: 2024-08-01
Build ID: UP1A.231005.007
Display ID: UP1A.231005.007.G991USQUCGXGA
Build date: Thu Jul 25 14:38:25 KST 2024
Build description: o1qsqw-user 14 UP1A.231005.007 G991USQUCGXGA release-keys
Build fingerprint: samsung/o1qsqw/qssi:14/UP1A.231005.007/G991USQUCGXGA:user/release-keys
Hardware information
SOC: SM8350
ABI: arm64-v8a
CPU ABI list: arm64-v8a,armeabi-v7a,armeabi
Board name: lahaina
Board platform: lahaina
Boot information
Bootimage build date: Thu Jul 25 14:33:34 KST 2024
Bootimage fingerprint: samsung/o1qsqw/o1q:11/RP1A.200720.012/G991USQUCGXGA:user/release-keys
Miscellaneous
ADP version: 0
ADP policy version: 00000000
ASKS version: 0
ASKS policy version: 00000000
VPN PP version: 2.4
Keystore keytype: sakv2,gak,sgak,
IMEI:
MEID:
Serial number:
Carrier:
Sales code:
Successfully finished.
Finished at local time: [08.22.24 16:24:09]
WorkID: 300268447

 

[ChimeraTool]

please help samsung s21 5g g991u after update bit 12 (C) touch not working and can not dowgrade at all
i tried all
so how to downgrade by edl or how to fix that because no solution never ever with all tools
the problem tp firmware is n/a so even firmware touch you can write so is there any sepcific file we can write via edl to fix that


Chimera Mobile Phone Utility version: 40.38.1026 @ 2024-08-22
Printing phone history

Repair Boot
8/22/2024
12:18
PM

Restore / Store backup
8/22/2024
12:16
PM

Restore / Store backup
8/22/2024
12:16
PM

Root
8/22/2024
12:15
PM

Update Firmware
8/21/2024
1:30
PM

Get info
Phone information
Model: SM-G991U
Manufacturer: samsung
Brand: samsung
Android information
Version: 14
SDK: 34
Security patch: 2024-08-01
Build ID: UP1A.231005.007
Display ID: UP1A.231005.007.G991USQUCGXGA
Build date: Thu Jul 25 14:38:25 KST 2024
Build description: o1qsqw-user 14 UP1A.231005.007 G991USQUCGXGA release-keys
Build fingerprint: samsung/o1qsqw/qssi:14/UP1A.231005.007/G991USQUCGXGA:user/release-keys
Hardware information
SOC: SM8350
ABI: arm64-v8a
CPU ABI list: arm64-v8a,armeabi-v7a,armeabi
Board name: lahaina
Board platform: lahaina
Boot information
Bootimage build date: Thu Jul 25 14:33:34 KST 2024
Bootimage fingerprint: samsung/o1qsqw/o1q:11/RP1A.200720.012/G991USQUCGXGA:user/release-keys
Miscellaneous
ADP version: 0
ADP policy version: 00000000
ASKS version: 0
ASKS policy version: 00000000
VPN PP version: 2.4
Keystore keytype: sakv2,gak,sgak,
IMEI:
MEID:
Serial number:
Carrier:
Sales code:
Successfully finished.
Finished at local time: [08.22.24 16:24:09]
WorkID: 300268447

Dear User,

Unfortunately we do not have any methods to downgrade the firmware between different binary version.
All we can suggest, is to try different firmwares.

Best Regards,
ChimeraTeam

 

[Ziggywong0305]

different firmwares wont help in this case, only fix available is to downgrade and block updates which unfortunately not available to him based on the security bit on his device.

 

[Dvdaio]

so finally no solution right

 

[greyhound]

same trouble, any solution