DeviceDecoded
ATT · Carrier Unlock

Unlock HDEC from ATT

Permanently remove the ATT network lock from your HDEC 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 HDEC × ATT unlock

ATT locks devices to its network when sold on contract or financed. Unlocking your HDEC 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 HDEC'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 HDEC unlock works regardless of which country it was originally sold in.

  • 🇲🇽 Mexico
  • 🇺🇸 USA

Popular HDEC models on ATT

FAQ — HDEC on ATT

Can ATT block this unlock?
No. Once your HDEC's IMEI is whitelisted on the manufacturer's database, ATT cannot reverse it.
Will my HDEC 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 HDEC 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.

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Ready to free your HDEC from ATT?

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

Start unlock →