I am a computer technician and I am very familiar with iPhone issues. I faced the same issue as the rest of you after updating from IOS 13 to IOS 14. Mine was not a beta version, it was the major release that everyone got. My phone is an iPhone XR and it is brand new. My phone has never been dropped nor has it had any contact with water. It has never been repaired. It does not have charging issues. The board is perfectly fine. IOS 14 has a major issue with it. I was able to track it down to specifically its interaction with Facebook, but I also noticed it dropped the cell phone data connection. I verified that it was not on the host end. The phone still worked on Wifi, but the cell service simply dropping out of no where was very weird. Knowing a restart would normally fix this issue, I decided to restart the phone and the phone stuck in an endless bootloop, with the apple logo. I plugged it into my computer on a most up to date iTunes, with an apple cord. I attempted an update and it failed. I attempted a restore and it failed. It would appear it was a hardware issue but it is not. The next thing I did was visit this form and tried some of the techniques. Nothing seemed to be working for me. The phone got stuck on the connect to iTunes screen. I decided to pay Reiboot Pro 35$ for a one year subscription, at the advice of one of the comments on here. I attempted the take out of recovery mode option first. This option failed. I attempted a restore and this option also failed. I attempted the last option of an advanced restore that deleted all of the phones contents and it worked this time. If you have an iPhone on IOS 14, I suggest that you backup your data to iTunes ASAP. You will need the data to restore the phone to after you wipe it clean with Reiboot Pro. This is an honest review of exactly what I faced and how I fixed it. I do not have any affiliation with the program mentions, but it did work for me. I hope this helps! KT