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One of the most prevalent issues users face with MobiFone SIM lock is exceeding the prescribed card reload limit, expiration due to neglecting recharge, and unpaid postpaid subscriptions.
Numerous factors contribute to the unfortunate event of MobiFone SIM lock.
Guide to Unlocking MobiFone SIM
1. Unlock MobiFone SIM due to exceeding card reload limit
Cause: When recharging your MobiFone prepaid account with a scratch card, if you enter the wrong code more than the network's specified limit of 5 times, the system will automatically lock your SIM.
Solution: To resolve this issue, call MobiFone's hotline at 18001090 and request assistance from customer service to unlock your SIM. The call to the hotline is free of charge.
2. Unlock MobiFone SIM with 1-way restriction
Cause: If you forget or neglect to recharge the MobiFone prepaid account for an extended period, the expiration date of the SIM usage is exceeded. In this scenario, your number can only receive incoming calls but cannot make outgoing calls.
Solution: Recharge your account by using a mobile top-up card. After a successful recharge, the system will extend the usage period for the subscribed number, allowing you to make outgoing calls again.
3. Unlock MobiFone SIM with 2-way restriction.
Cause: After your number is restricted to incoming calls due to expiration from not recharging, the system allows you to receive incoming calls for 10 days . If over 10 days from the one-way restriction and you haven't recharged, the system will proceed to restrict both incoming and outgoing calls . With postpaid subscriptions, long overdue payments can lead to this situation.
Solution: Similar to the one-way restriction, the only way to resolve this is to recharge your account (for prepaid) or pay your bill (for postpaid).
4. Unlock PUK code for MobiFone SIM
Cause: PUK code is the personal code of the SIM, each subscription has a unique 8-digit code. When you enter the wrong PIN three times on your device, the system will prompt you to enter the PUK code. If you exceed the network's limit of 10 attempts, you won't be able to unlock it and will need to replace the SIM.
Solution: Contact MobiFone's hotline at 9090 with a charge of 200đ/minute or 18001090 with no charge, and request assistance from customer service. Beforehand, remove the SIM from your phone, note down the 4-digit serial number on the SIM, and provide it to the customer service representative for the unlocking process.
5. Situations where unlocking MobiFone SIM is impossible
+ As mentioned earlier, when you enter the wrong PUK code more than the network's specified limit of 10 times, the SIM cannot be unlocked, and you will need to replace it.
+ The 30-day grace period for unlocking a SIM with 2-way restriction allows you to resolve the issue. After 30 days, unlocking is no longer possible, and you must visit a store for a SIM replacement.
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So, together, we have explored the methods to unlock MobiFone. Each cause has its unique solution. Through this article, take a moment to check your account information, expiration date, and make payments (if necessary) to avoid the regrettable occurrence of MobiFone SIM lock. Additionally, refer to how to top up credit for other MobiFone subscriptions here.
