If your router prompts for a "SIM Network Unlock PIN" when you insert a third-party SIM, you don't need to flash firmware. How to unlock Vodafone Ghana Huawei B311s-220 Router
Struggling with a carrier-locked B311s-220? Here is everything you need to know about unlock firmware, how it works, the risks involved, and the safest alternatives. huawei b311s-220 unlock firmware
To unlock a router, the most common and reliable method is using an unlock code rather than a firmware flash, which carries a risk of bricking the device. Option 1: Unlock via SIM Code (Recommended) If your router prompts for a "SIM Network