FixHive blog

Advice and explainers on phone repairs: when a repair is worth it, what your phone's messages mean and how to get ready for a repair.

• iPhone shows "Unknown Part" or "Important Message": what it meansAfter a display or battery replacement, the iPhone shows a message about an unknown part, the battery no longer shows its health percentage, or True Tone has stopped working. Here is what the message means, what it really affects, and what a replacement looks like that the iPhone doesn't flag.Updated 11 Oct 2026