Same thingg happened to me. Iphone XR, storage full. Tried to backup on my computer, it got halfway and then said the iphone disconnected. I said i’ll try again tomorrow, and restarted my phone as it was being super slow and deleting texts. I got stuck on boot loop, and then now it is in recovery mode. I tried to update it on itunes, and I am getting the error 14.
I am beyond devastated, I’ve lost 2 years of memories as I have not backed up since then. I’m putting my phone in a drawer, and waiting until iOS 14 in hopes that apple will push out some kind of fix. If enough people bring it up, maybe we can get their attention. This is so ridiculous and heartbreaking to so many peopl.”e. How can a phone literally stop working at full storage? That sounds like a bug in the code to me