Power off the router and insert the nano-SIM from the new carrier into the slot.
The interface should automatically display a prompt asking for a "Network Unlock Code" or "SIM Network PIN". Carefully enter the code you received and click Zte Mf293n Router Unlock
Before paying for a service, you should attempt the official unlock. Many carriers are legally required to unlock devices upon request (especially in Canada and the EU). Power off the router and insert the nano-SIM