Wednesday, 28 October 2015

Camera can't focus properly, screen tearing/shaking/jerking.



Yesterday I bought a used (yet excellent condition) M7_UL. I was hyped for a bit, unlocked the bootloader, flashed recovery, rooted, and installed some roms. Eventually I settled on GPE+ 3.0.2 but my joy was short lived.

I soon noticed very weird behavior of the focus. (I've owned 3 other M7s and neither behaved like this).

The camera finds it really hard to focus on anything further than... let's say a foot. When I does, it's enough to ever-so-slightly move the device by 1mm and it will lose focus, even with AF and AE locked before capture. At times, it will lose focus even on a tripod - I tap to focus, make sure it really is in focus and wait. A few moments later focus is lost. Tried this outdoors, where light variations are expected, and also indoors. Same thing.

It does have an easier time focusing on objects closer than a foot or so, but the behavior is similar. Just wait or move the device in the slightest and focus is lost.

More than this, while it tries to focus, there are some strange going-ons with the camera and it's viewfinder - screen tearing, shaking, jittering... I'm really not sure how to explain it so I've uploaded a video.

https://youtu.be/B7Jla932rJY


I've done a couple of hours of research and I think I eliminated most obvious culprits. I've thoroughly cleaned the lens cover, gave the phone a tap on the back, threw it on my bed, snapped it against my thigh, thinking maybe it's jammed , cleaned data of the app, tried stock, and several 3rd party apps.

Nothing did anything.

Can anyone offer some insight, please?



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