Downgrade Mi 10T Pro "M2007J3SG"

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ricru90

Member
Jan 23, 2018
7
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Premise: I have a xiaomi Mi 10T Pro model "M2007J3SG", never flashed firmware, never rooted and only updated from phone settings.
Wanting to revert to a firmware with android 10, original do I need to unlock the bootloader?
If I have to unlock it how should I do it, assuming I don't have to put any custom rom or run root.
 
Premise: I have a xiaomi Mi 10T Pro model "M2007J3SG", never flashed firmware, never rooted and only updated from phone settings.
Wanting to revert to a firmware with android 10, original do I need to unlock the bootloader?
If I have to unlock it how should I do it, assuming I don't have to put any custom rom or run root.
Wanting to revert to a firmware with android 10, original do I need to unlock the bootloader? Yes
https://c.mi.com/thread-1857937-1-1.html
https://en.miui.com/unlock/index.html
Downgrade:
https://forum.xda-developers.com/t/flash-tool-guide-use-xiaomi-flash-tool.4262425/
Fastboot rom:
https://xiaomirom.com/en/rom/mi-10t-10t-pro-apollo-china-fastboot-recovery-rom/
 

ricru90

Member
Jan 23, 2018
7
0
my concern is roll back protection, because from what I have read since I want to downgrade two versions of android i.e. from 12 to 10, the roll back index is discordant between the two firmwares
 

ricru90

Member
Jan 23, 2018
7
0
Not important, use the script directly included in the fastboot rom.
in the unfortunate event that something should happen and the procedure fails, is there any precaution to be taken before doing so, like a backup not of the files, but a backup of the firmware or something similar?
 
in the unfortunate event that something should happen and the procedure fails, is there any precaution to be taken before doing so, like a backup not of the files, but a backup of the firmware or something similar?
If the phone is a Chinese version does not lock the bootloader.
Miflash is used to flash firmware.
unlock bootloader erases your data, Miflash too.
If there is an error during the flash, the flash does not occur.
 

ricru90

Member
Jan 23, 2018
7
0
If the phone is a Chinese version does not lock the bootloader.
Miflash is used to flash firmware.
unlock bootloader erases your data, Miflash too.
If there is an error during the flash, the flash does not occur.
so what I have to do is unlock the bootloader as stated in the first guide and then run your guide to downgrade to the correct firmware?