Guides

Checking and applying a carrier unlock on iPhone

6 minute read · beginner

An iPhone's carrier lock is recorded on Apple's and the carrier's side, not in a code you type in. When your carrier approves an unlock, it tells Apple, and the phone picks up the change the next time it activates. You only need three things: to read the status, to trigger that activation, and to know what to do if the change doesn't come through.

Unlocking itself does not erase anything. The erase-and-restore fix at the end does. Back up first.

Read the lock status

Go to Settings > General > About > Carrier Lock. If it says No SIM restrictions, the iPhone is unlocked. Anything else means it is still locked to a carrier.

iPhones never ask for a network unlock code. If a website says it will sell you one for an iPhone, it is selling you nothing.

Before you request the unlock

  1. Check that the line the phone was used on meets the carrier's minimum service time, for postpaid or prepaid.
  2. Make sure the phone isn't listed as lost or stolen.
  3. Pay off any instalment plan if the carrier requires it.
  4. Submit the request through the carrier's own unlock portal or app, using the IMEI.

A carrier unlock does not remove Activation Lock. The iPhone will still ask for the Apple Account that Find My is signed in to. Those are separate locks.

Getting the approved unlock onto the phone

  1. Wait for the carrier to confirm the unlock. The carrier then tells Apple.
  2. Connect the iPhone to Wi-Fi.
  3. Insert a SIM from a different carrier, or install another carrier's eSIM.
  4. If the iPhone shows an Activation Required screen, follow the prompts. That downloads the unlocked status.
  5. Check Settings > General > About > Carrier Lock again. It should now say No SIM restrictions.

If the unlock doesn't apply

If the carrier has confirmed the unlock but the phone still says it is locked, the last resort is a full erase, or a restore from a Mac or PC using Finder or iTunes. Either one makes the phone activate from scratch.

Only do this after a verified backup, and only if you can sign in to the Apple Account on the phone. Otherwise Activation Lock will stop you at setup.

Erasing or restoring deletes everything on the phone. Back up first and confirm the backup exists.

After the unlock: SIM, eSIM and bands

Once the phone is unlocked, you can usually insert a compatible physical SIM or install an eSIM from another carrier.

The phone still needs to support the new network's bands. If it doesn't support the bands that network relies on, coverage can be weak even though the phone is fully unlocked.

After the first start on the new line, test calls, texts and mobile data. Keep your old carrier account working until you know verification codes for your important accounts still arrive.

If the carrier rejects the IMEI

Write down the exact error text and contact carrier support. Don't turn to instant-unlock sellers. Many rejections clear once a billing cycle posts or a fraud hold is released. Keep your proof of purchase in case you need to escalate.

Stop and get help when

  • The carrier says the IMEI is reported lost or stolen.
  • Setup asks for an Apple Account you cannot sign in to. That is Activation Lock, not a carrier lock.
  • Someone offers to sell you an iPhone unlock code.

Official route

The carrier that locked the phone. Apple can't grant a carrier unlock, but it can help with the activation step once the carrier has approved the unlock.

Who this is for: You must be the account holder with the carrier that locked the phone, or authorised by them.