[Q]camera video unknown error - Xperia Z2 Q&A, Help & Troubleshooting

hey guys , my xperia z2 is on existenz 2.0 rom and camera launches and takes pictures but when taking a video it says "unknown error occurred" and also in playing videos in video application (the main system app for playing videos) there is sound but this message "unknown error" stays on screen while screen is black and there is sound .. is it my phone or the rom ? how can i fix this can some one help me ?

try flash stock rom, if that error still exist maybe the problem on your phone.

for a XZ3 I tried to compress the screen and the case between my fingers and it recliped the cam-cable inside...
No more unknow error since

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