While holding the short, plug the power adapter into the router. Keep it shorted for 3 to 5 seconds, then release.
Initiate the flashing process. A progress bar will track the data blocks being written to the router's flash memory. huawei router b311221 unlock firmware verified
: Huawei routers have a limited number of unlock attempts (usually 10). If you enter the wrong code too many times, the device may become permanently locked. While holding the short, plug the power adapter