What to do if you're asked for a SIM PIN or PUK
SIM PIN
You'll only be asked for a SIM PIN if you've turned this security feature on yourself. When you first set it up, enter the default SIM PIN: 0000.
Once it's on, you'll usually be asked for your SIM PIN after your eSIM loses power. That can happen when you:
restart or turn off your phone
disable your eSIM in your phone's settings
Turning on Airplane mode won't ask for your SIM PIN, because your eSIM stays powered on.
If your SIM locks and you're asked for a PUK
If you enter your SIM PIN wrong three times in a row, your eSIM locks and you'll be asked for a PUK (Personal Unblocking Key).
You might also see the PUK screen later. For example, if you entered your PIN wrong three times, left the eSIM locked, then restarted your phone or disabled and re-enabled your eSIM.
Because Monzo Mobile uses eSIMs, you won't unlock yours with a PUK. Instead, install a new eSIM in the app:
Tap Mobile
Tap Make changes to your plan and view documents
Tap Install SIM
Follow the steps to create and download a new eSIM
Give your new eSIM a name
Delete the old eSIM from your phone
Your old eSIM might still show as enabled on your phone, but it won't be able to connect to the network.
Still need help? Chat to us in the app.
