To unlock a Huawei mobile phone on the AT&T network, first check that the phone meets AT&T’s requirements and then send a request for an unlock code. To unlock Huawei phones on the T-Mobile network that meet the network’s requirements, you can either request an unlock code or use the Device Unlock app.
The general requirements to unlock a mobile phone are available on the Consumer Device Unlock Portal on att.com. Check the box at the end of the page to agree to the terms and conditions and display the unlock request form. Fill out the form using your AT&T wireless number and your Huawei mobile phone’s IMEI number. You also need to enter your name, social security number and email address to complete the form.
To unlock a Huawei mobile phone on the T-Mobile network, verify that your mobile phone meets the eligibility requirements of the company’s SIM Unlock Policy. If the phone is eligible for unlocking, contact T-Mobile’s customer service to request the code and the steps to unlock your phone.
If your eligible Huawei mobile phone supports the Android operating system, download the Device Unlock app from Google Play to unlock your phone. The Device Unlock app gives you the option to temporarily or permanently unlock your phone.