sensors stop working , note 4x - Xiaomi Redmi Note 4 Questions & Answers

i just bought redmi note 4x from banggood...it was unlocked. i flashed developer rom without problems....however after few days the sensors ( acceleration ,magnetic) stop working ( verified by *#*#6484#*#*). searching a lot and i found the problem may be corrupted persist.img...... i tried to flash it by fast boot but failed , it gives me message :
FAILED (remote: Error: This image isn't allow download).
please how i flash persist.img....alternatively , can any one provide me with twrp backup of persist partition.?
pleeeeeeeeeeeeeeeeeeeeeeeeease urgent help.

please any one can provide me dump of persist partition (using dd command) ? my device is nearly dead , i cannot flash any system : (cannot mount persist partition invalid argument).

i got the same problem exactly.. mine is dead too.
miflash EDL mode flashing and flash/install/restore in TWRP are not working.. please give me your hand.

I have the same problem too did you guys solve it? I really need some help

anyone solve this problem ? thanks
I try flash miui 7.9.7 global beta via EDL mode. But still not working
Then i flash rom miui v8.1.10.0 via edl mode... Taraaa.....My mido bootloop duk on mi logo only.
Next i flash in edl mode use miui 7.9.7 again.
Done... All sensor working perfectly.
Maybe anyone try whats ive done.
Thanks
Sory my bad english
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