In the unlock firmware’s advanced XML config (via http://192.168.8.1/html/index.html debug mode), you can increase Tx power from 20 dBm to 25 dBm. This reduces battery life but improves range.

Whether you are a digital nomad, a rural internet user, or just tired of carrier lock-in, this guide gives you the technical roadmap. Your Huawei E8372h320 is no longer a paperweight—it is your global internet key.

For full freedom, the unlock firmware install is superior.

balong_flash.exe --write --partition=rootfs --file=openwrt-rootfs.bin
balong_flash.exe --write --partition=kernel --file=openwrt-kernel.bin
balong_flash.exe --write --partition=uboot --file=openwrt-uboot.bin

⚠️ Never interrupt power during flashing – takes ~3-5 minutes.

The E8372h320 does not flash while in normal "modem mode." You must force it into Download Mode.

Using Huawei Firmware Extractor, you can back up the nvram and oeminfo partitions. This allows recovery if something goes wrong.