This is the most common and safest method for ZTE routers. When you insert a non-Airtel SIM, the router detects a foreign network and asks for an "NCK" (Network Control Key) code.
Can brick the router if wrong firmware is used. No warranty. how to unlock airtel zte router
Connect a computer to the router and log in to the admin dashboard (usually via an IP address like 192.168.0.1). Navigate to the or APN section. Enter the APN details provided by the new network carrier. Save the settings and restart the device. This is the most common and safest method for ZTE routers
Reach out to the provider's customer service department. They will typically require the device's IMEI number, which can be found on a sticker on the back or bottom of the router. how to unlock airtel zte router