Sensors stop working, I need help - Xiaomi Redmi Note 4 Questions & Answers

The only sensor working is the sound sensor all other sensors are not working... It happened while I am using Lineage OS... I tried factory reset, and flashing a new rom and the sensors is still not working... I really need some help

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Fingerprint issue..

Yea my fingerprint just doesnt work it selected my finger 1 time in the calibration and than never again like its dead.. Lineage OS 14.1 and i already flashed the Modem( downloaded and pressed install in twrp its right or?) but it doenst fixed my Issue.. so how do i fix it i really like the rom and dont really want to swap it but i need the fingerprint

Fingerprint sensor doesnt work

So my fingerprint sensor stoped working properly in the rr rom then i installed the google experience 8.0 rom and still the same problem. I've already tried changing the modem but no luck. It apears a message saying "fingerprint sensor became unavailable"
Again the same thread. Use a search button.
How long it takes after u flash rr ROM? I am using slim7. Still work here

Sensors dont work on SM-N900V

Hello,
I have a problem with my Verizon Note 3, all sensors (proxymity, compas, gyro, light, accelerometar) dont work. My phone not rooted, first had stock KitKat 4.4.2 (same problem) then I upgrade LoliPop OF1 ...same sensors nothing. Back to factory settings and clear wipe cashe then reeboting ...nothing
Otherwise Phone work perfect in all other without disturbances...and very strange that only sensors stop, does no have any physical damage
If has any idea what to do???....if problem on Board or any software bug
Please people somebody help....

Proximity sensor problem

I have propblem. I installed the stock android 10 and after that my proximity sensor stoped working. During the call, screen wasnt turn off thus I downgraded. Now I am using stock android 9. It still not working. I dont know if the 10 stoped the prox. Hardware. How I can solve that problem. Should I need to wait for the new update or It can be a hardware problem. I formated many times It did not work. I reset no way. I entered to the hw check it says "not support this sensor". When I searched cominity. For note 8 after oupdate the hw passed the test. What to do?
I found a way but I need persist.img file. How can I find that file for mi a3
mehalaktas said:
I have propblem. I installed the stock android 10 and after that my proximity sensor stoped working. During the call, screen wasnt turn off thus I downgraded. Now I am using stock android 9. It still not working. I dont know if the 10 stoped the prox. Hardware. How I can solve that problem. Should I need to wait for the new update or It can be a hardware problem. I formated many times It did not work. I reset no way. I entered to the hw check it says "not support this sensor". When I searched cominity. For note 8 after oupdate the hw passed the test. What to do?
Click to expand...
Click to collapse
I have the same issue. The value for Proximity sensor in Hardware test (*#*#64663#*#*) is -1.
mehalaktas said:
I found a way but I need persist.img file. How can I find that file for mi a3
Click to expand...
Click to collapse
You can find persist.img inside the stock fastboot rom. The guys at 4pda also posted a download link of the persist.img and also a tutorial on how to flash it using twrp.

Rear camera not working. Already tried factory reset and flashing new ROMs

Hello everyone! I've been dealing with this problem for so long and I hope you can help me solving it.
All of a sudden the rear camera of my LeTv Le Max 2 stopped working about a month ago. In that moment, I was using a custom ROM (AOSiP) and the TWRP recovery. It was just the rear camera that stopped working, because the front one was working fine.
I already tried several ways to fix it that I found on internet, such as deleting cache and app data, installing other camera apps, factory reset, flashing new ROMs, flashing one of the Stock ROMs, flashing GApps again... nothing, still doesn't work.
Now I have LineageOS 16.0 and everything works, exception made for the rear camera. Every camera app doesn't even show the button to switch from front camera to rear camera and Google Camera crashes as soon as I open it.
What can I do?
Thanks in advance.
Heyyo, hmm this sounds serious! I would recommend backing up everything important off of your x2 and trying QFIL.
https://forum.xda-developers.com/le-max-2/how-to/guide-hard-brick-fix-qualcomm-hs-usb-t3492949
Good luck!

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