A factory reset is crucial before selling, recycling, or donating your Android phone or tablet. It can also be a last-ditch attempt at troubleshooting persistent issues with your device.

Forgot your Android phone password? Unlock it fast with easy methods like Find My Device, factory reset, or Samsung's Find My Mobile without hassle.

If your phone freezes or runs slowly, a reset often clears up your problems. First, though, you need to protect your data by backing it up. Here’s how.