Not necessarily. A standard official update will not carrier-unlock your device. You need a specific “unlock firmware” or an unlock code. Separate processes.
Huawei B612s TD-LTE Modem Router – обсуждение - 4PDA huawei b612233 firmware
The corresponding WebUI for version 10.0.5.1 is often designated as W2SP10C314 How to Update Firmware Not necessarily
Use this method if OTA is unavailable or you have a downloaded firmware package. . Read the release notes
However, . Read the release notes, back up your configuration via display current-configuration > backup.cfg , and schedule the update during a maintenance window. With proper preparation, the Huawei B612233 firmware will transform a problem-prone ONU into a rock-solid network edge device.