first try global rom Temp Root.
Temp Root ok and imei repair ok. but after factory reset nvdata corrupted
Read Information [adb]
Brand: Xiaomi
Model: 2510DRA23E
Product: spinel
Marketname: REDMI Note 15
Boot mode: normal
Region: GLOBAL...
reboot fastboot again...wipe efs with dft
run minimal adb fastboot aplication
write factorynv.img file from eng firmware folder with this command
fastboot flash fsg (factorynv.img path)
reboot
than open dft....please manualy write both...
reboot fastboot again...wipe efs with dft
run minimal adb fastboot aplication
write factorynv.img file from eng firmware folder with this command
fastboot flash fsg (factorynv.img path)
reboot
than open dft....please manualy write both...
but be carefull....before all opreations....backup original qcn...and create critical file with original wifi mac and bluetooth mac adreses....
write critical file and than restore original qcn which has the same bluetoot and wifi mac...