DeviceBoxGuides
Short, practical answers about iPhones that restart by themselves, batteries and used phones.
iPhone keeps restarting by itself? Read the panic log
Why an iPhone restarts by itself or keeps restarting, what its panic log says, and why the same code points to a different part on another model.
Where to find the panic-full log on an iPhone
An iPhone that restarts by itself writes a panic-full log. Where iOS keeps it, how to recognise it, and how to open it in DeviceBox.
iPhone battery health check: real health, cycle count
Settings shows one rounded number. The analytics file on the iPhone holds the battery's own figures and cycle count; here is how to read them.
How to check a used iPhone before buying
Four checks with DeviceBox that tell you what a used iPhone really is, how it was sold, how its battery has aged and whether it restarts by itself.