Contacts synced with your Google account are the easiest data to recover: Google keeps a 30-day trash and can even undo changes to your entire contact list.
- 1Open contacts.google.com and sign in with your account.
- 2Click 'Trash' in the left menu, deleted contacts stay there for 30 days. Select and restore.
- 3For mass deletions, use Settings (gear) → 'Undo changes' and pick a moment before the loss.
- 4On the phone, confirm sync is on: Settings → Accounts → Google → Account sync → Contacts.
- 5Contacts saved only to SIM or phone storage aren't in Google, check Contacts app → Settings → Import.
Tip: Set new contacts to save to your Google account by default, never 'Phone only', it makes them recoverable and portable forever.