Never disconnect power during an update. A power failure during a flash can "brick" the router.
There are two primary ways to unlock this device: the safe IMEI-based code method and the more technical firmware flashing route. 1. The IMEI Unlock Code Method (Recommended) huawei router b311221 unlock firmware hot
Use a trusted service like DirectUnlocks or ExpressUnlocks to request an official unlock code based on your 15-digit IMEI. Never disconnect power during an update
Ensure the firmware matches your exact model ( ). Flashing firmware on a 221 can permanently damage the unit. huawei router b311221 unlock firmware hot