A: Rare, but possible with bad firmware. Always make a full backup (NVRAM + firmware) before flashing.
There are two main ways to bypass this:
Using the wrong method or losing power during flashing can permanently disable the router. Unofficial unlocking/firmware modifications void the manufacturer's warranty Common Default Credentials huawei b315s-607 unlock firmware
Even with new firmware, some versions require a final software unlock: Open the DC-Unlocker client. A: Rare, but possible with bad firmware
Once the router boots up, navigate to 192.168.8.1 in your browser. Default is usually admin / admin . huawei b315s-607 unlock firmware