Plz help samsung galaxy s20+

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solyvski961

Member
Feb 1, 2021
7
0
hello , i upgraded my device from android 10 to android 11 from smart switsh after update is done the imei is 00000000 and model number is none tried to downgrade back to android 10 didnt work downloaded official firmware from samobile still imei 000000000
rooted the phone tried to fix imei in chimera tool not work
and model none plz help
 

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myaslioglu

Senior Member
Nov 20, 2012
768
215
Istanbul
hello , i upgraded my device from android 10 to android 11 from smart switsh after update is done the imei is 00000000 and model number is none tried to downgrade back to android 10 didnt work downloaded official firmware from samobile still imei 000000000
rooted the phone tried to fix imei in chimera tool not work
and model none plz help

First of all, do you have efs backup? If so try to restore it with latest twrp.. If not.. then.. I am not responsible for unsuccessful commands.. yet, how worse can it be?

Boot into TWRP recovery.
From TWRP’s main screen, select Advanced » then Terminal.
Type the following commands in terminal (one by one):
dd if=/dev/zero of=/dev/block/bootdevice/by-name/modemst1

dd if=/dev/zero of=/dev/block/bootdevice/by-name/modemst2

Or you can use bootloader and adb

Setup adb and fastboot to your pc.. (google or xda it)
Enable usb debugging in developer options (google again if u dont know)
Then with command prompt using adb and fastboot.
adb reboot bootloader
fastboot erase modemst1
fastboot erase modemst2
fastboot reboot

Good luck..
 

solyvski961

Member
Feb 1, 2021
7
0
First of all, do you have efs backup? If so try to restore it with latest twrp.. If not.. then.. I am not responsible for unsuccessful commands.. yet, how worse can it be?

Boot into TWRP recovery.
From TWRP’s main screen, select Advanced » then Terminal.
Type the following commands in terminal (one by one):
dd if=/dev/zero of=/dev/block/bootdevice/by-name/modemst1

dd if=/dev/zero of=/dev/block/bootdevice/by-name/modemst2

Or you can use bootloader and adb

Setup adb and fastboot to your pc.. (google or xda it)
Enable usb debugging in developer options (google again if u dont know)
Then with command prompt using adb and fastboot.
adb reboot bootloader
fastboot erase modemst1
fastboot erase modemst2
fastboot reboot

Good luck..

thanks for your reply
step1 not working
step 2 after
fastboot erase modemst1 it stuck on erasing modemst1...
my samsung must be rooted?
 

solyvski961

Member
Feb 1, 2021
7
0
First of all, do you have efs backup? If so try to restore it with latest twrp.. If not.. then.. I am not responsible for unsuccessful commands.. yet, how worse can it be?

Boot into TWRP recovery.
From TWRP’s main screen, select Advanced » then Terminal.
Type the following commands in terminal (one by one):
dd if=/dev/zero of=/dev/block/bootdevice/by-name/modemst1

dd if=/dev/zero of=/dev/block/bootdevice/by-name/modemst2

Or you can use bootloader and adb

Setup adb and fastboot to your pc.. (google or xda it)
Enable usb debugging in developer options (google again if u dont know)
Then with command prompt using adb and fastboot.
adb reboot bootloader
fastboot erase modemst1
fastboot erase modemst2
fastboot reboot

Good luck..

erasing 'modemst1'...
FAILED (status read failed (Too many links))
finished. total time: 221.570s