How to factory reset an Android phone (without losing what matters)
A factory reset wipes the phone and returns it to the state it was in when new. Use it to fix a stubborn problem, to start fresh, or before you sell or give the phone away.
Before you reset
- Back up your data. Photos, contacts, files and chats are deleted. See how to back up your WhatsApp chats and how to switch phones without losing anything.
- Know your Google account and password. Android has a theft-protection lock that asks for the account that was on the phone after the reset. If you do not know it, you can be locked out.
- Charge the phone to at least half, or plug it in.
- Remove accounts first (optional but safest). Go to Settings > Accounts and remove your Google and brand accounts, such as a Samsung or Xiaomi account.
- Take out the SIM and memory card so they are not affected.
How to reset
Menu names vary by brand, so look for the closest match.
- Most Android phones: Settings > System > Reset options > Erase all data (factory reset).
- Samsung: Settings > General management > Reset > Factory data reset.
- Other brands: search for “reset” in Settings.
Read the list of what will be erased, confirm with your PIN or pattern, and wait. The phone restarts and shows the setup screen.
After the reset
Sign in with your Google account and choose to restore from your backup if offered. Then reinstall apps and sign back in.
If you are selling the phone
A reset is the last step. Remove your accounts first, then reset, and do not set the phone up again. The next owner can do it. More on checks buyers should do in buying a used phone.
If you are resetting to fix a slow phone
Try other fixes first: see how to speed up a slow phone. A reset is a good last resort, not the first step.
