If you ever have the courage to change your bag yourself iPhone 7, or iPhone 7 Plus, then you'll probably need a tutorial to teach you how to do this. In the video clip below you have an explicit tutorial that will teach you how to replace the battery of these terminals, but of course you also need skill to do it yourself.
Of course, you will completely cancel the warranty of your terminal when you open it and cut all the glue that makes it waterproof, so you will have to be careful when it comes into contact with water. However, this procedure saves you from visiting a GSM service to do the replacement, of course if you are handy enough to do it yourself.
