iPhone doesn't recognize it's battery
So, I've been trying to find a local, authorized store to take a look at my phone, but I've had NO luck at all. My phone, which I've only had for a few months had turned off, randomly, at around 80% battery life and wouldn't turn back on for 10 minutes or so but when it did it said the battery wasn't recognized (???). It then continued to turn off and on non-stop through out the night. I NEED it fixed but in order to send it in for repair I see it requires me to turn off "Find my iPhone" which is impossible for me to do since it doesn't even work in the first place!
What am I supposed to do? Please help!
iPhone 11 Pro Max