I want to share really interesting detail about shaking camera view. Tried everything “magnet trick, tapping camera trick or 3rd party camera software” and none of them worked. For long time i was dealing with my phone’ faulty battery and i use external battery pack frequently. Today while phone was plugged to external battery; used camera and shaking camera view was gone. When you think about coincidence, it makes sense. If battery doesn’t supply proper voltage for camera and screen, fluctuation on screen may happen. I think apple wants to hide it from users because they just ended their iphone 6 battery replacement on december 2018. And as i understand this issue covers multiple models; “iphone 6, 6plus, 7,7plus, and even newer models”