Learn how to use the Mobile Device Unlock code of the Sony Xperia Z.
- Determine if devices are eligible to be unlocked.
- Contact Customer Care to request the Mobile Device Unlock code for your phone.
- Turn the phone off.
- Insert the blocked SIM card, and then turn the phone on.
- Enter the unblock code, and then tap Unlock. The phone should display a confirmation message stating that the SIM card is now unlocked.