<human>: I was invited to my boyfriend's summer home, which belongs to his relatives. His aunt, the nicest lady, was having a minimal problem with her pictures. She couldn't get the photos to show up in thumbnail -- they were just showing gray. So I saw that an upgrade to iOS 8.4 hadn't been made, so I went ahead and made the upgrade, since this usually fixed bugs in the past. Nope. Stuck in a reboot infinite loop. Pretty sure I lost everything. Things are backed up, but I'm freaking out over the fact that not all the content will be recovered.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Tried to help fixing iPad problems, ended up needed to back up and reboot the entire thing, without being 100% sure that all the content will be saved.