iPhone & iOS

iPhone fixes, iOS settings and feature guides — solve errors, protect your data and master your iPhone.

100 guides Part of Technology

The IMEI is your iPhone’s unique identity number, a bit like a fingerprint for the hardware. Carriers ask for it when you…

October 20, 2026

An iPhone that is locked to one carrier will only work with that network’s SIM cards. If you try to use another…

October 20, 2026

Unlocking the phone is only the start of what Face ID can do. The same quick glance can open your banking app,…

October 20, 2026

Your iPhone passcode is the master key to your digital life. It protects your photos and messages, it unlocks your banking apps…

October 20, 2026

Few messages cause panic like ‘iPhone is disabled’. One moment the phone is fine, the next it refuses every code and tells…

October 20, 2026

Forgetting your iPhone passcode feels like a disaster. Maybe you changed it recently and the new code will not stick, maybe a…

October 20, 2026

Face ID officially supports one face, but Apple quietly built in a second slot called an alternate appearance. It was designed for…

October 20, 2026

There is an important difference between Face ID failing to recognise you and the message that says ‘Face ID is not available’.…

October 20, 2026

Face ID usually gets better over time as it learns your face, but sometimes the opposite happens. Maybe your appearance changed, maybe…

October 20, 2026

Face ID is one of those features you only notice when it stops working. You pick up your iPhone, it stares back…

October 20, 2026