Unlocking one-way blocked SIM cards: Viettel, Mobi, Vina

In this article, Mytour will guide you on unlocking one-way blocked SIM cards from Viettel, Mobi, and Vina. The instructions provided below are for those who are experiencing one-way blockage due to both objective and subjective reasons.

Unlocking one-way blocked SIM cards: Viettel, Mobi, Vina
 

How to unlock one-way blocked SIM cards: Viettel, Mobi, Vina

1. Unlocking one-way blocked SIM cards: Viettel

When it comes to unlocking one-way blocked SIM cards from Viettel, there are two scenarios: temporary unlocking (lasting for 3 days before automatically re-blocking) and permanent one-way blocking. These methods differ slightly.

- Temporary unlocking of Viettel one-way blocked SIM card:

To follow the temporary unlocking method for Viettel one-way blocked SIM card is very simple, you just need to follow the instructions below which is to compose a message according to the following syntax:

-> Compose a message following this syntax: MO send 195.
Then, the hotline will confirm the information of your request to unlock your Viettel one-way blocked SIM card and send a notification to your phone via SMS.

- Permanent unlocking of Viettel one-way blocked SIM card:

To unlock a permanently blocked Viettel sim card, you must visit Viettel's service points and provide essential personal information such as your phone number and valid identification (ID card, passport, or official ID).

* Your Viettel phone number.
* Valid identification (ID card, passport, or official ID).

2. Unlocking a one-way blocked Mobifone sim card

To unlock a one-way blocked Mobifone sim card, you need to visit Mobifone's service counters and provide basic personal information.

* Your Mobifone phone number.
* Valid identification (ID card, passport, or official ID).

Additionally, you can contact Mobifone's hotline 9090 for assistance regarding Mobifone's service points and further information on unlocking a one-way blocked Mobifone sim card.

3. Unlocking a one-way blocked Vinaphone sim card

Similar to Vinaphone, to unlock a one-way blocked Vinaphone sim card, you need to visit Vinaphone's service points to update and provide necessary subscriber information.

* Your Vina phone number.
* Valid identification (ID card, passport, or official ID).

Additionally, you can contact Vinaphone's hotline 9191 for assistance regarding unlocking a one-way blocked Vinaphone sim card.

Here's how to unlock a one-way blocked Viettel, Mobi, Vina sim card. This is also the only way to help you in case your account is currently blocked one way. However, for some accounts locked due to not updating subscriber information, simpler methods may apply.

-> For Viettel subscribers, you can view the guide on updating Viettel subscriber information here and follow Mytour's instructions.
-> For Vina subscribers, you can view the guide on updating Vinaphone subscriber information here and follow Mytour's instructions.
-> For Mobi subscribers, you can view the guide on updating Mobi subscriber information here and follow Mytour's instructions.