Selfie Camera Not Working - Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe

Hi, recently i had a problem & faced bootloop that's why i flash a fastboot rom & then again flashed the latest version of the custom rom i was using. After few hours i noticed that none of my sensors were working, although i have fixed this sensor problem now by flashing the persist.img file from fastboot rom but still selfie camera problem is there.
I tried controlling is manually using an app it's working perfectly then but generally at the time of video calling or switching to front cam it's not even working for once.. please help me how to fix this problem!!

Solved!!!!

learnerz said:
Hi, recently i had a problem & faced bootloop that's why i flash a fastboot rom & then again flashed the latest version of the custom rom i was using. After few hours i noticed that none of my sensors were working, although i have fixed this sensor problem now by flashing the persist.img file from fastboot rom but still selfie camera problem is there.
I tried controlling is manually using an app it's working perfectly then but generally at the time of video calling or switching to front cam it's not even working for once.. please help me how to fix this problem!!
Click to expand...
Click to collapse
Is it solved??

ILoveAndroidCustomization said:
Is it solved??
Click to expand...
Click to collapse
yes

How did you fixed it? I still have the same issue

Related

No connection for camera

Hello,
I just flashed my mi8 with original fastboot Rom.
But I dont get connection. To camera.
What's wrong?
there is this thread about a similar issue. Maybe it can help you
Potrait only? If so this is a known bug.

Proximity and Ambient Sensor Not working.

Hello devs,
My 3t's Proximity and Ambient Sensor both sensor stopped working after I updated from rooted 9.0.5 to MSM Android 10.
After that, I've tried everything but they are not getting back to work. Prior flashing 10, both were working fine.
So far I tried.
1. Flashed official 9.0.5 rom
2. Flashed official 8.0 rom
3. Factory reset on both rooms.
4. Stable modem & firmware files.
5. Flashed "Fix all sensors" file.
6. Tried *#808# can't seems to be showing any data or presence of sensors.
Any suggestions, will be highly appreciated
I had problems with sensors (accidently deleted sensors dir from persist partition, it contains sensors calibration, wifi and bt hw address).
So i used latest unbrick tool (9.0.5), but it didnt solve my issues, then i used the oldest unbrick tool i could find (Marshmallow) and sensors started to work but could not enable wifi, so i made local upgrade to 9.0.5, after that all my issues got resolved - sensors and wifi works again.
Try what i did, maybe it will sovlve your issue too.
ppajdek said:
I had problems with sensors (accidently deleted sensors dir from persist partition, it contains sensors calibration, wifi and bt hw address).
So i used latest unbrick tool (9.0.5), but it didnt solve my issues, then i used the oldest unbrick tool i could find (Marshmallow) and sensors started to work but could not enable wifi, so i made local upgrade to 9.0.5, after that all my issues got resolved - sensors and wifi works again.
Try what i did, maybe it will sovlve your issue too.
Click to expand...
Click to collapse
Still my Proximity, Ambient and MSensor isn't working.
ppajdek said:
I had problems with sensors (accidently deleted sensors dir from persist partition, it contains sensors calibration, wifi and bt hw address).
So i used latest unbrick tool (9.0.5), but it didnt solve my issues, then i used the oldest unbrick tool i could find (Marshmallow) and sensors started to work but could not enable wifi, so i made local upgrade to 9.0.5, after that all my issues got resolved - sensors and wifi works again.
Try what i did, maybe it will sovlve your issue too.
Click to expand...
Click to collapse
Would flashing any oneplus 3t pulled persist.img solve my problem?
hasanin.xaidi said:
Would flashing any oneplus 3t pulled persist.img solve my problem?
Click to expand...
Click to collapse
Persist partition contains wifi and bt hardware address, so if you flash persist.img from another op3t you would end up with the same wifi and bt address.
You would need to backup your persist partition, then backup wlan_mac.bin and /bluetooth/.bt_nv.bin, flash another persist.img and restore the two files.
Then check is your issues are solved.

Mic fail in call - no sound transmitted

Hello,
This has been driving me nuts. I can't be heard in normal calls, the mic picks up nothing.
I am using global 9t pro.
I have tested the hardware and the mic is working. Speakerphone works also. All roms tried present the same problem (stock, lineage, Xiaomi.eu). I have now clean flashed stock MIUI 10 and updated to 11 and problem remains.
I've read there can be sim reader problems, but speakerphone seems to work. I've read there can be audio routing problems relating to headset with mic being detected, but I can't find evidence the phone thinks there is a headset connected. I've disabled Google Assistant and the problem remains.
What puzzles me is that even after a complete clean flash of stock rom there is no improvement.
Any advice would be greatly appreciated.
Thanks
dvns said:
Hello,
This has been driving me nuts. I can't be heard in normal calls, the mic picks up nothing.
I am using global 9t pro.
I have tested the hardware and the mic is working. Speakerphone works also. All roms tried present the same problem (stock, lineage, Xiaomi.eu). I have now clean flashed stock MIUI 10 and updated to 11 and problem remains.
I've read there can be sim reader problems, but speakerphone seems to work. I've read there can be audio routing problems relating to headset with mic being detected, but I can't find evidence the phone thinks there is a headset connected. I've disabled Google Assistant and the problem remains.
What puzzles me is that even after a complete clean flash of stock rom there is no improvement.
Any advice would be greatly appreciated.
Thanks
Click to expand...
Click to collapse
Hello I had a similar problem, my autorotation and mic started to fail and I got confused, after some research it turns out if I flash MIUI 11 and go back to MIUI 10 a partition called persist gets deleted and it completely messes up your sensors and it won't get fixed regardless you flash another rom, what I did was download fastboot rom and flash it. If that doesn't fix it extract the persist.img from the rom files and flash it through TWRP and it should go back to working. Wait now that I think about it you try flash persist.img from the files and if it doesn't work then you flash the fastboot rom. Good luck

HELP : Camera not working at all

i tried to use a gcam. it lag soo bad so i tried to flash the 'fix' , after it succeeded i open the camera but it crashes, i tried to launch the stock camera app and it crashed too. every other sensors are working except the camera app (both stock and the third party). Im using an android 10 custom rom
i think i flashed a wrong .zip fix for another phone
https://del.dog/emopuphick (dont know if this is useful or not)
Sorry for my terrible english

Question Front camera and sound problem after ota update 12.5.8.0 ?

Hi i need help desperately from the experts her e.
After updating to global 12.5.8 miui the phone front showbox camera not working, no sound at all, not even in bluetooth and headphone jack. Most annoying thing is the youtube video maxed out at 720p. Even in youtube vanced. speed test
Very weird problem.
I flashed sweetin 12.5.9 miui but still the problem remains same.
Can anybody help me out please?
I have the same issue. Still waiting after 7 days to unlock boatloader and downgrade the stock rom to 12.0.1 and I hope it will fix the problem.
paulolols24 said:
I have the same issue. Still waiting after 7 days to unlock boatloader and downgrade the stock rom to 12.0.1 and I hope it will fix the problem.
Click to expand...
Click to collapse
Do you solve this problem?
i started having issue with my camera after 12.5.9 update my default miui camera app would close after clicking one photo although it was working in other camera like snapchat or fj camera. But few days after 12.5.10 update both front and back camera completely stopped working.
I unlocked my bootloader to downgrade the rom or flash custom rom as this seemed like a software issue . But after a week when i downgraded to my surprise the issue was still there which implies that the camera hardware has failed . So i dropped the idea of installing custom rom and instead went to service center, now they are replacing the motherboard as its hardware issue . I am gonna get back my phone today from service center so will update you guys accordingly .
Blog Link - This is the blog link which discusses about same problem even xiaomi has accepted the issue.
Its weird that software update can cause hardware bug but what i think is that with the update kernel setting might have been changed which can cause over voltage to camera module or something. Its my wild guess i don't have much idea about it . I would love to know it from experts out here .

Categories

Resources