Guides

Short, practical answers about iPhones that restart by themselves, batteries and used phones.

What an iPhone panic log says, why the same code means a different part on another model, and how to read it without guessing.

An iPhone that restarts by itself writes a panic log. Here is where iOS keeps it, how to recognise it, and how to open it in PhoneBox.

Settings shows one rounded number. The iPhone's analytics file holds the battery's own figures; here is how to read them with PhoneBox.

Four checks with PhoneBox that tell you what a used iPhone really is, how it was sold, how its battery has aged and whether it restarts by itself.