DeviceDecoded
Smart · Carrier Unlock

Unlock Viettel from Smart

Permanently remove the Smart network lock from your Viettel 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 Viettel × Smart unlock

Smart locks devices to its network when sold on contract or financed. Unlocking your Viettel is straightforward once your account meets Smart'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 Viettel's IMEI directly, and once approved, the device is permanently whitelisted. The unlock survives factory resets, OS updates, and SIM swaps.

Smart country coverage

Smart operates in 4 countries. Your Viettel unlock works regardless of which country it was originally sold in.

Popular Viettel models on Smart

FAQ — Viettel on Smart

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

Ready to free your Viettel from Smart?

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

Start unlock →