*If you enter the wrong SIM PIN too many times, your wireless carrier might be able to give you a Personal Unlocking Key (PUK). If you can't unlock your SIM card or eSIM using the SIM PIN or PUK code or if an alert says, 'PUK exhausted,' ask for a new SIM card or eSIM.Ask your carrier to help you unlock your SIM card or eSIM using the default SIM PIN or PUK code.Telling me that Vodafone have to help with this as the phone was manufactured by Vodafone. Talkmobile unhelpful with this issue, pushing me onto Vodafone. Curiously, the Talkmobile SIM card still works. If you aren't sure which carrier to call and your device has an eSIM, go to Settings > Cellular and your carrier will be listed directly above 'Turn On This Line.' Permanently unlock your Alcatel TCL A502DL remotely and legally without affecting your warranty. The phone now says that the slot is permanently locked if I use a SIM card from another provider, eg, EE. If you aren't sure which carrier to call and have a device with a physical SIM card, remove your iPhone SIM card or iPad SIM card and check the card for the carrier's name or logo. Contact the carrier that gave you the SIM card or eSIM.The wrong guess can permanently lock your SIM card or eSIM, which means that you would need a new SIM card or eSIM. If your device asks for a PIN or code that you don't know, here's what to do: Then, every time you restart your device or remove the SIM card, your SIM card or eSIM will automatically lock and you'll see 'Locked SIM' in the status bar. * The wrong guess can permanently lock your SIM card or eSIM, and then you would need a new SIM card or eSIM.
Never try to guess a SIM PIN or PUK code.