For someone who is looking to make this as simple as possible it is important to note that although it is super important to disconnect the battery first, you do not need to remove the battery ruining the adhesive. All you need to do after unplugging the battery is disconnect the flex cable and the black jumper wire and pull out the board, this is of course after you have the phone fully opened up. I’m not saying they did it wrong because I know they did it right and very thorough, if you are new to this and working on your own phone in a hurry, do what I said. Good luck in your repairs!