What is the installed on your router? Who is your current network provider ? Do you have a Male-to-Male USB cable handy?
It can unlock additional network settings, such asband selection or advanced SMS management 1.2.3. huawei b311-221 unlock firmware
Temporary disable security software on your PC, as it may block the flashing tools from interacting with the router's ports. Required Tools and Files What is the installed on your router