hello everyone I'm having a weird problem with my iPhone 6s plus. My battery lasts fine, but under heavy load (let's say opening the cámara and filming a video) I'll lose 5% or more in less than a minute. Then it will stay in the same percentage for more time than usual. After this occurs the battery indicator will be quite erratic. How can I fix this? all diagnostics appear fine and I've done everythung, even restoring