Uploading this modified file through the "Firmware Upgrade" section of the router's dashboard. Frequency Management:
You will need specific files to perform the unlock. Reliable community sources often provide these "repack" files: mobily wltfqq124gn unlock firmware download repack
— be extremely cautious.
Once unlocked, you may need to manually set the APN for your new SIM card: Uploading this modified file through the "Firmware Upgrade"