B311-221 Unlock Firmware

The hardest part of unlocking the B311-221 is finding the correct firmware. Official Huawei firmware is not always publicly available on their website.

If you have access to the router's command line (often done by telnetting into the device or using a specialized tool to open a port), you can send AT commands to unlock it. B311-221 Unlock Firmware

A common command used in older Huawei models was: AT^CARDLOCK="<unlock_code>" The hardest part of unlocking the B311-221 is

However, on the B311-221, access to the command port is often blocked by the ISP's firmware, requiring Method 2 (flashing) to regain access to these ports first. on the B311-221

After unlocking, you can force the router to ignore internal antennas. Send AT^ANTENNA=1 to enable TS-9 ports.