can you open your camera? if not follow ifixit rear facing camera guide here iPhone 5s 后置摄像头更换 on Step 18, dont' remove any of the lcd connector. but touch and try to fix camera cables. (strips). Turn on your phone. and open your camera app (no need to fully reassemble your screen for a while.) Now when camera is ON, and you can see camera's view on lcd.. try to press camera strips. if you see abrupt behavior of camera... it must be your camera's strips broken. if nothing changes, remove all LCD connectors from step 18 to 23 following that guide. i mentioned above. and remove camera's connector.. remove camera out.. try to adjust it's strips from end to end. fix it back.. connect all connectors and check again. if anything change or not... If it is fine. Thanks GOD or else.. you need to order a new camera for 5s from any online store. I use AliExpress you may use any one.. ebay or some other store.
one line statement... in MBP 13,early 11, Shared Video Memory will simple increase. I had 3xxMB video ram when i had 4GB RAM.. Now I've 512MB video ram with 10GB RAM. graphics works run so smooth. (Adobe suite) specially ... whoever are saying nothing will change are over technical.
I bought a new LCD, replaced it my self. and one day the new LCD was broken, I put the old LCD with an application "android floating softkeys" or "Android Assistive touch". and you know what.... after a few days my LCD started working fine, the softkeys started working perfectly fine.
I have the same issue. But I got a trick. It didn't solve the issue but it's now greatly different. I put a transparent "scotch" tape on the lense glass. That is now amazingly fine quality photo shooter than before. You must try this before paying even a penny.
i've been facing the same problem. I think it's screen digitizer has some issues.. I visited a shop in my city for the repair. they said. It's screen is damaged. I need to replace it. And it's cost would be 80$. Including repair charges. I came back to home, found some screens on some online stores.. Ordered one form Aliexpress.com in 45$. I have already studied the way how to replace screen in this ifixit. I have received one lcd screen a few days back. I replaced my self.. And its great.. ALHAMDULILAH... Ifixit :-) its working great. I am from Lahore, Pakistan.