Huawei B660 Firmware ((top)) -

Firmware mismatch (model or region). Solution:

Huawei B660 Firmware Update: Enhancements and Fixes huawei b660 firmware

: Flashing firmware carries a risk of "bricking" your device (making it unusable). Always ensure your power supply is stable and you are using the exact firmware version intended for your hardware variant (e.g., QISB660-54A). Firmware mismatch (model or region)