DeviceDecoded
T-Mobile · Carrier Unlock

Unlock LANDMARK from T-Mobile

Permanently remove the T-Mobile network lock from your LANDMARK 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 LANDMARK × T-Mobile unlock

T-Mobile locks devices to its network when sold on contract or financed. Unlocking your LANDMARK is straightforward once your account meets T-Mobile'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 LANDMARK's IMEI directly, and once approved, the device is permanently whitelisted. The unlock survives factory resets, OS updates, and SIM swaps.

T-Mobile country coverage

T-Mobile operates in 5 countries. Your LANDMARK unlock works regardless of which country it was originally sold in.

  • 🇦🇹 Austria
  • 🇬🇧 UK
  • 🇺🇸 USA

Popular LANDMARK models on T-Mobile

FAQ — LANDMARK on T-Mobile

Can T-Mobile block this unlock?
No. Once your LANDMARK's IMEI is whitelisted on the manufacturer's database, T-Mobile cannot reverse it.
Will my LANDMARK 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 T-Mobile account credentials?
No. We unlock by IMEI alone. You don't need to provide your T-Mobile username, PIN, or account number.
What if my LANDMARK is still on a T-Mobile 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 T-Mobile

Ready to free your LANDMARK from T-Mobile?

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

Start unlock →