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Hi.Your SIM card has been permanently linked to your 4G router.
As of 01 January 2026 MTN implemented a new rule. SIM cards used in 4G routers that are four years or older have been permanently linked to their current device.
This means that if your SIM card is lost or damaged and requires replacement, your existing 4G router will no longer be able to reconnect to the MTN network using a new SIM. In this case, you would need to purchase both a new SIM card and a new router.
Because your current router is an older 4G model, now is an ideal time to upgrade to a device that provides faster, more stable and more reliable connectivity. Please visit our website if you wish to purchase a new 5G router.
@Afrigirl what is this please? Seems like a pretty poor taste way to force us to buy newer hardware?
At the moment, all 4G devices currently paired with active MTN LTE packages remain allowed and will continue to work as usual.
Unfortunately, we are unable to change or override MTN's policy. The new device-linking rule is applied at the network level by MTN. This only affects you if the SIM is lost or damaged and needs to be replaced, because the replacement SIM won't reconnect to the original 4G router.
If you haven't had any issues with your current setup, no immediate action is required.

