From the bench

How to tell whether your iPhone battery needs replacing

Battery health numbers, unexpected shutdowns, and when a swollen cell is a same-day job.

What actually happens to a water-damaged phone (and why rice does not work)

Rice is a myth. Here is what corrosion does on the board, and what to do in the first hour.

Genuine, OEM or aftermarket screens: what you are really paying for

The three grades explained in plain English, including True Tone and why “OEM” is a slippery word.