Your propeller is not gained enough lift in back. You need to take a propeller from front and replace with one diagonal in back. P.S sorry about my English. Not my first language. And also don't crash drone into a dor
Try squeezing home button and power button at the same time. Take into Apple Store. Friend had same problem and she took it there they fixed for free. Don't try and fix on own. You could be further messing up the phone. P.S I understand language problems. English isn't my first language either. Struggle is real
Plug in charger. Error message should pop up. Press finger against dismiss or ignore button and-while still applying pressure to the screen-unplug cord. Still apply pressure as you plug the cable back in. Wait for a few seconds then release pressure. Worked for me. So happy!!!