Camera problem BV9800 Pro

[lew247]

Hi
I rooted my phone, but not before bricking it
I was eventually able to get it all working apart from Tee key - posted on another thread
and
My back camera is not working
If I upgrade to Lineage OS 17.1 then the front camera will work but not the back
When I went back to the original firmware the stock camera app just will not work
I installed Device Info and I can see the problem - well a possible cause of it
It shows the device having 2 front cameras only
Yet in the system info it says front and back
I've tried other camera apps and they don't work
Also the flash does not work

Any ideas how to fix this? I'm guessing it's an issue in some setting




EDIT I've fixed the Tee and Google key messages on screen

[X3non]

Hi
I rooted my phone, but not before bricking it
I was eventually able to get it all working apart from Tee key - posted on another thread
and
My back camera is not working
...

have you tried using a different camera app from play store?

[lew247]

EDIT:
Other camera apps now work but the flash does not and the stock camera app does not
the flash also isn't working

[maxpayne]

EDIT:
Other camera apps now work but the flash does not and the stock camera app does not
the flash also isn't working

How many different firmware (for this model) have you flashed and do you remember your original build number?

[lew247]

How many different firmware (for this model) have you flashed and do you remember your original build number?
I've tried both the Stock rom which is android 9 and lineage-17.1
I don't remember my original build number

[X3non]

How many different firmware (for this model) have you flashed and do you remember your original build number?
I've tried both the Stock rom which is android 9 and lineage-17.1
I don't remember my original build number

do you at least remember if yours is the european or non-europe variant?
check the link @ https://bbs.blackview.hk/viewtopic.php?f=285&t=532354

[lew247]

It's the EEA version
It's a problem in the NVRam section of the phone
The issue only appeared after formatting
I have tried everything to get it working again but nothing works
not even formatting the complete phone again and then just flashing the stock firmware
The back camera works with other camera apps but does not work with the stock app
and the flash does not work under any circumstances
The only thing left to try is to get a copy of the NVRam section of a working BV9800 Pro and trying to flash that, then change the imie number back to my original afterwards

[X3non]

It's the EEA version
It's a problem in the NVRam section of the phone
The issue only appeared after formatting
I have tried everything to get it working again but nothing works
not even formatting the complete phone again and then just flashing the stock firmware
The back camera works with other camera apps but does not work with the stock app
and the flash does not work under any circumstances
The only thing left to try is to get a copy of the NVRam section of a working BV9800 Pro and trying to flash that, then change the imie number back to my original afterwards

you can check the blackview forum, maybe someone has the phone there and is willing to give you his nvram backup