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When you send your iPhone for repair

A technician examines a phone at a repair workbench.

What to do

Underlock is coming soon to the App Store. Here’s how it will work.

A repair shop that has your passcode can open the Photos app. Photos in your vault aren’t in the Photos app, and your passcode doesn’t open your vault.

Back up your iPhone

  1. Connect your iPhone to Wi-Fi.
  2. Open the Settings app.
  3. Tap your name, then iCloud, then iCloud Backup.
  4. Tap Back Up Now.
  5. Stay on Wi-Fi until the backup finishes. The time of your last backup then shows under Back Up Now.

Before a repair, Apple also asks you to turn off Apple Cash and to remove your cards from the Wallet app. Apple’s steps before a repair

The next steps depend on your iOS version. To see your iOS version, open the Settings app, then tap General, then Software Update.

On iOS 27: turn on Repair or Trade In

On iOS 27, you don’t turn off Find My. Repair or Trade In, in the Find My app, keeps Find My on during the repair. When you book the repair, Apple or the Apple Authorized Service Provider tells you if your repair can use Repair or Trade In.

  1. Open the Find My app.
  2. Choose your iPhone, then tap the More button.
  3. Tap Repair or Trade In, then tap Enable.
  4. Enter your Apple Account password.

When the technician finishes the repair, Repair or Trade In turns off by itself.

On iOS 26 or earlier: turn off Find My

These steps are for every iOS before iOS 27, such as iOS 17, 18 or 26.

  1. Open the Settings app.
  2. Tap your name, then Find My, then Find My iPhone.
  3. Turn off Find My iPhone.

Apple asks you to turn off Find My before a repair on iOS 26 or earlier. With Find My on, Apple may not be able to repair your iPhone.

When you get your iPhone back

Apple says your iPhone may come back erased. If your iPhone was erased, follow the setup steps on the screen. On the Transfer Your Apps & Data screen, tap From iCloud Backup to restore your backup. Apple’s steps to restore a backup

If you turned off Find My iPhone before the repair, turn Find My iPhone back on. In the Settings app, tap your name, then Find My, then Find My iPhone.

What Underlock does

  • Your passcode doesn’t open your vault. Your vault opens with your own pattern, not your iPhone passcode or Face ID.
  • Nothing to see without your pattern. Anyone who opens Underlock without your pattern finds only the pattern screen.
  • Locks as you leave. By default, your vault locks the moment you leave Underlock.

Questions people ask

Apple says no. Apple and Apple Authorized Service Providers won’t ask you for your passcode. For some software help, you may be asked to type your passcode on your iPhone yourself. You still don’t tell anyone your passcode. If you type your passcode in for a technician, Apple says to stay with your iPhone while the technician uses it.

No. Your vault opens with your own pattern, not your iPhone passcode or Face ID. Without your pattern, Underlock shows only the pattern screen.

On iOS 26 or earlier, yes. With Find My on, Apple may not be able to repair your iPhone. On iOS 27, turn on Repair or Trade In in the Find My app instead. Find My then stays on during the repair.

Yes. Underlock is free forever: one vault, no file limit. If the free plan ever changes, you keep the plan you started with. More vaults come with Pro, Underlock’s paid plan.

Hand over your iPhone, not your vault

Free for one vault, with no file limit. No account, no email.

For iPhone with iOS 17 or later.

Coming soon to the App Store

Get an email when Underlock launches

  • Lifetime Pro for $39.99 at launch, not $49.99.
  • Then news a few times a year.
  • Leave the list any time.

You’re on the list.

Underlock · hello@underlock.app