My phone is infinitely bootlooping as well after ios14 install. I have been doing a lot of research on this topic, and think I may be discovering something here. I had my screen replaced at ubreakifix roughly 1 month ago. phone worked great after, just a simple cracked screen that was bothering me. After updating to ios14 I immediately began the infinite bootloop. If I mess with the buttons and hold the screen in a certain spot, I can eventually bypass this and the phone turns on. It will work great, no issues at all even for extended periods. Once I lock the screen, it begins to bootloop again. I brought it to the genius bar, who were unable to find any issue with the phone (and they cracked it open for me) other than noting that the screen turning on was causing a panic-full analytic error. I then went over to ubreakifix, who were at a loss for words. today, ubreakifix called. another customer had come in, with an iphone 11 (also had a screen replaced recently). They went to install the new ios14 and have begun bootlooping infinitely just like me. Is it possible that the new ios14 is searching for aftermarket repairs/parts and once identified, causing the phone to panic and crash? I was told by apple support that my only option was to pay them for a repair, as I am out of warranty and "am not allowed to go back to ios13". Have we lost our right to repair? I am extremely upset with apple right now... so much so that if this is true they have lost a customer for life