If the screen still works, back up your data to a cloud service (like Google Drive or iCloud) and perform a factory reset . You can restore your data once the phone is fixed. Use "Maintenance Mode": Many modern Android phones (like Samsung) have a Repair/Maintenance Mode

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Some modern phones (like Samsung or Pixel) have a "Maintenance" or "Repair Mode" that hides your personal data while allowing the technician to run hardware tests. Remove SD Cards: