half of mine stripped, possibly from using cheap drivers that came with the replacement battery. now i have a new battery that I cannot use because I cant get the remaining screws out. It didnt help that the youtube video I watched didnt have me using the correct size driver. He had me use a T4…Plus I believe someone already tried to get the screws out before. It was a used phone when I got it. The video I watched also had me disconnect the flex cable and now I cannot get it to connect good again so the power button and volume buttons are messing up and sometimes the phone wont charge. Which, again I think the cable was messed with prior. I am thinking a new battery was never my issue to begin with. I am wondering if it was a bad cable all along. This simple project turned into a huge headache for me. I wish I would have seen the 2nd video I found first because he did it without disconnecting the flex cable.