Once inside the Telnet shell, type:
AT+SIMLOCK? # Checks lock status
AT+SIMLOCK=0 # Disables network lock (on some modems)
AT+CLCK="PN",0,"123456" # Where 123456 is the NCK code (if required)
If you don’t have an NCK code, try:
AT+ZSNT=0,0,0 # Resets operator lock
Reboot the router: reboot
Before trying any tricks, you can legally ask Airtel to unlock your router. how to unlock airtel zte router
This removes all Airtel customizations but can permanently damage your device if done incorrectly.
Warning: Airtel-specific features (like VoIP or TR-069 auto-configuration) may stop working.
Best for: Older ZTE models (like the MF70, MF90, or MF910) where the web interface unlock method doesn't work. Once inside the Telnet shell, type: AT+SIMLOCK
Warning: This method carries a high risk of damaging your router. Do not proceed if you are not comfortable with technical processes.
Step 1: Identify Your Model Check the bottom label for the exact model number (e.g., ZTE MF910, ZTE F670L).
Step 2: Download Generic Firmware Search online for the "Generic Firmware" or "Universal Firmware" for your specific ZTE model. If you don’t have an NCK code, try:
Step 3: Access the Upgrade Tool
Step 4: Flash the Router Run the upgrade process. Do not turn off the router or computer during this process. Once the generic firmware is installed, the Airtel branding will be removed, and the router will accept all SIM cards automatically.
Certain Airtel ZTE 5G routers (like the ZTE MC801A) have a hidden engineering menu that allows temporary unlocking.