Upgrading or flashing firmware can brick the device if done incorrectly.
If you are attempting to update or change the firmware on a Huawei B683, extreme caution is advised. huawei b683 firmware
For specific versions, like the V100R001C994B122 , a "Version Upgrade Guide" exists that covers both BCM and MSM software updates, including app and configuration file updates. Upgrading or flashing firmware can brick the device
Firmware for the B683 (such as version V100R001C994B122 ) typically governs the device's web-based management interface and core routing functionalities. like the V100R001C994B122