How do I unlock my T-Mobile iPhone?

Unlocking your T-Mobile iPhone is an optional step that increases the amount of your Gazelle offer by "unlocking" it from T-Mobile to be used on another network. It can be requested from T-Mobile Customer Care at no cost. Most customers are eligible to unlock their old phone after upgrading, but you can find the full list of requirements at the bottom of this page.

To request an unlock from T-Mobile

Get in touch with T-Mobile Customer Care using one of the methods below, and tell them you need to SIM unlock your phone

Call 611 from a T-Mobile phone, or 877-746-0909 from another line

Or, go to Contact T-Mobile and choose "Chat now" (when available)

Have the following information ready:

Primary account holder's information (name, last 4 digits of SSN)

Email address (to receive further instructions)

Account number (found on My T-mobile or on your bill)

Mobile number for phone to be unlocked

IMEI for phone to be unlocked (to locate the IMEI, dial *#06# OR go to Settings > General > About)

Reason for unlock request: To work on international networks

After submitting your request, you will receive an email from T-Mobile with further instructions. Please make sure to complete the process before shipping your iPhone to Gazelle.

T-Mobile Unlock Eligibility

Your account is in good standing

You have purchased your device from T-Mobile or an authorized T-Mobile dealer and activated it on T-Mobile service (must provide proof of purchase if T-Mobile is unable to verify purchase)

Your device has been active on the T-Mobile network for 40 days and not reported as lost, stolen, or blocked

You paid for your device in full (if you are under a service contract, you have made monthly payments for at least 18 consecutive months on your plan, or have paid a migration fee for the device)

If you are on a Prepaid plan, you have had more than $50 in total refills on the device

If you are a former customer, your account balance is zero and you did not port out a line associated with the device during the buyer's remorse period

You have requested no more than 2 SIM unlock codes per line of service in the last 12 monthsMore information available from T-Mobile Support