Learn how to use the Mobile Device Unlock code of the T-Mobile Sidekick 4G.
SIM unlock phone
The Mobile Device Unlock code allows the device to use a SIM card from another wireless carrier. This may be necessary when traveling internationally. To enter the Mobile Device Unlock code, follow these steps:
Important: Stop if you receive an error message. The device may lock permanently if you enter the incorrect code multiple times.
- See if your phone is eligible to unlock: Mobile Wireless Device Unlocking.
- Contact Customer Care to request the Mobile Device Unlock code for your phone.
- Verify the IMEI by typing *#06#.
- Submit a new request.
- Enter #7465625*638*Unlock Code# and tap Unlock.