Hi! The proximity sensor, light sensor, gyro, I mean the auto brightness, auto rotate and the screen to turn off when I'm in a phone call don' t work since i installed miui 12. I'm up to date on the latest version, but when I try to test them, they aren't shown as installed. I haven' t took the device apart or anything, it din't even fall on the ground. This bug happens on my mi 9t pro. Anyone has these issues or knows how to solve them?
New Proximity sensor, light sensor, gyro don't work 20.7.9 mi 9t pro
- Thread starter julica
- Start date
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- Tags
- bug bug report miui 12 miui bug
paulo_1307_
Members
- Feb 20, 2020
- 40
- 20
Your persist partition is probably corrupted or missing.
This method seems to solve it without removing the widevine L1, but in case it doesn't work, your only option is to flash the persist partition, what it going to kill your widevine L1, and there's no turning back (Had to do that in my mi 9, unfortunately)
forum.xda-developers.com
This method seems to solve it without removing the widevine L1, but in case it doesn't work, your only option is to flash the persist partition, what it going to kill your widevine L1, and there's no turning back (Had to do that in my mi 9, unfortunately)
[SOLVED] Fix Sensors not working / Find My Device Corrupted Error
Fix for getting back your sensors and Find My Device Error The Problem that i have faced.. I have unlocked my bootloader after updating my device to MIUI 11 , and flashed Paranoid Android Quartz Alpha 2 which was then based on android 10 By...
forum.xda-developers.com
Fingerprint fails after update: Often there are 2 issues,..
First check your Sensors in CIT menu <= dial this : * # * # 6 4 8 4 # * # *( or go settings/myphone/special Information click several times on kernel-version)
Now CIT-Menu opens, check gyro, FOD,...
If these are showing values they should work and you can go Calibrate FOD:
1) Please go in the CIT menu
2) Go in "3-dots" menu > Additional tools"
3) Find "fod fingerprint calibration"
screen scroll down calibrate the FOD
-> place a white thing (Paper, mirror) on FOD click start
before next step put somthing black on FOD and press next...
wait until finish close restart and add your fingerprint
If sensors are not working your persist partition seems to be corrupted!
In this case do following steps:
1.Download the latest Fastboot rom of our device from here (https://c.mi.com/in/miuidownload/detail?guide=2).
2.Extract the downloaded package and navigate to images folder.
3.There you can find the persist.img file of your device.
4.Copy the file to your internal storage.
5.Reboot your device to TWRP and goto advanced/terminal
6.On the interface, type the following command.
Code:
simg2img /sdcard/persist.img /sdcard/persist_EXT4.img
7.If your code returns error like "Invalid sparse file format at header magic" as in my case then continue with the second line of code
Code:
dd if=/sdcard/persist.img of=/dev/block/bootdevice/by-name/persist
8.Else continue with this code
Code:
dd if=/sdcard/persist_EXT4.img of=/dev/block/bootdevice/by-name/persist
9.Simply reboot to system
Thx and have a nice day
Chris
First check your Sensors in CIT menu <= dial this : * # * # 6 4 8 4 # * # *( or go settings/myphone/special Information click several times on kernel-version)
Now CIT-Menu opens, check gyro, FOD,...
If these are showing values they should work and you can go Calibrate FOD:
1) Please go in the CIT menu
2) Go in "3-dots" menu > Additional tools"
3) Find "fod fingerprint calibration"
screen scroll down calibrate the FOD
-> place a white thing (Paper, mirror) on FOD click start
before next step put somthing black on FOD and press next...
wait until finish close restart and add your fingerprint
If sensors are not working your persist partition seems to be corrupted!
In this case do following steps:
1.Download the latest Fastboot rom of our device from here (https://c.mi.com/in/miuidownload/detail?guide=2).
2.Extract the downloaded package and navigate to images folder.
3.There you can find the persist.img file of your device.
4.Copy the file to your internal storage.
5.Reboot your device to TWRP and goto advanced/terminal
6.On the interface, type the following command.
Code:
simg2img /sdcard/persist.img /sdcard/persist_EXT4.img
7.If your code returns error like "Invalid sparse file format at header magic" as in my case then continue with the second line of code
Code:
dd if=/sdcard/persist.img of=/dev/block/bootdevice/by-name/persist
8.Else continue with this code
Code:
dd if=/sdcard/persist_EXT4.img of=/dev/block/bootdevice/by-name/persist
9.Simply reboot to system
Thx and have a nice day
Auto-rotate and the light fail to work even after trying any kind of magic. I can't calibrate gyro and acc either. Calibration constantly fails.
