DeviceDecoded
ATT · Carrier Unlock

Unlock MTC from ATT

Permanently remove the ATT network lock from your MTC using its IMEI. Use any SIM, anywhere — including international carriers when you travel.

Price

$19.99

Delivery

1-5 business days

Method

Official IMEI

Permanent factory whitelist. No software.

About this MTC × ATT unlock

ATT locks devices to its network when sold on contract or financed. Unlocking your MTC is straightforward once your account meets ATT's eligibility criteria — typically the device must be paid off and not reported lost or stolen.

DeviceDecoded uses the manufacturer's official unlock channel. We submit your MTC's IMEI directly, and once approved, the device is permanently whitelisted. The unlock survives factory resets, OS updates, and SIM swaps.

ATT country coverage

ATT operates in 2 countries. Your MTC unlock works regardless of which country it was originally sold in.

  • 🇲🇽 Mexico
  • 🇺🇸 USA

Popular MTC models on ATT

FAQ — MTC on ATT

Can ATT block this unlock?
No. Once your MTC's IMEI is whitelisted on the manufacturer's database, ATT cannot reverse it.
Will my MTC stay unlocked after a factory reset?
Yes. The unlock is permanent at the factory level — it persists through factory resets, OS updates, and SIM changes.
Do I need my ATT account credentials?
No. We unlock by IMEI alone. You don't need to provide your ATT username, PIN, or account number.
What if my MTC is still on a ATT payment plan?
It depends on the device's status. Start with the eligibility check at our unlock checkout — that page explains how the two-stage payment works before you commit.

Other brands on ATT

Ready to free your MTC from ATT?

Enter your IMEI to start. Money-back if we can't deliver.

Start unlock →