Huawei‘s B890 WebCube (Gateway) is unlockable. I have already unlocked the B890-75 Drei (3) web cube of Austria using FMC unlocker. But, Zain and another carrier, B890-75, comes with customized firmware, and it does not accept the unlock code. Also, the latest firmware of B890 does not accept the SIMlock code. Maybe, this firmware will be able to unlock your B890-75 of Zain carrier; however, we have personally not tested, and I am not responsible for any harm to your device.
This post will share the instruction for firmware updating and download link of firmware (link is provided at the end of the article).
How to Change / Flash the Firmware of Huawei B890 WebCube (Gateway)?
1. Download the firmware update from the link.
2. Now double click on the downloaded file to run it.
3. Click on “Check” to check the currently installed version.
4. Now click on “Upgrade.” The update will start, and the WebCube begins to flash.
5. Once the update is complete, the WebCube will restart. Modules that are compatible with your device will be updated, and which are not compatible and will be not updated in these processes and will be unchanged.
6. The update is now complete. You can use your B890-75 WebCube in the usual way. You need to do the setting again.
Note: Firmware update is risky, and it may corrupt your device. Do it at your own risk. Before starting the process, make sure your device and laptop are connected to a constant power supply / UPS.
Download Huawei B890Upgrade-C03B124SP01
Firmware of Router Module Version: 1281.11.03.09.127sp02
Firmware of Wireless Module Version: 1281.11.03.08.122sp08
Download Huawei B890-V100R001C03B127SP02
