Before you start
Do not begin with a broad reset. Check the following first so you can isolate the problem and avoid unnecessary data loss or reconfiguration.
- A factory reset erases data stored on the phone
- Confirm the Google Account email and password
- After a recent password change, check official waiting guidance
Critical diagnosis for this symptom
Internal data is erased and the previous Google Account may be required during setup.
Do not reset while account recovery information is unavailable.
Escalate with device, OS, error, and reproduction details when the issue persists after restart, controlled comparison, and update checks, or when physical damage, abnormal heat, account suspension, or carrier provisioning is suspected.
Understand the process
Safe step-by-step procedure
Work from the top and stop as soon as the issue is resolved. Read every confirmation screen before moving to a higher-impact action.
- 1For troubleshooting, first try restart, updates, storage cleanup, app checks and a targeted network reset.
- 2Confirm Google Account access, screen lock, backups, authenticator transfer, eSIM and app-specific migration.
- 3On many devices, open Settings > System > Reset options > Erase all data; labels vary by manufacturer.
- 4Read the erase summary and enter the PIN, pattern or password.
- 5Charge the phone sufficiently and do not interrupt the erase process.
- 6After reset, previous Google Account verification may be required. Before transfer, follow the manufacturer’s official account-removal procedure.
Actions to avoid
- Selecting Wipe data in Recovery without understanding it
- Resetting while the Google Account is unknown
- Trying to bypass device-protection checks
Prevention and preparation
- Review backups and recovery methods regularly
- Check official model-specific instructions
Frequently asked questions
What if my screen looks different?
Labels and locations vary by OS, manufacturer, model and region. Use Settings search and check the manufacturer’s model-specific instructions.
What if I am unsure partway through?
Go back and confirm that no action has been committed. Do not proceed through an erase or account-change warning until you understand it.
What if the problem remains?
Test another connection or accessory where relevant, verify backups, then contact the manufacturer or carrier through official support.