I have previously written about unlocking of Tre (3) Sweden E372 Huawei modem. You can also “Unlock Tre (3) Sweden E372 Huawei Modem” and you can refer “Unlocking instructions of E372 Cosmote Romania Huawei dongle“. E372 Canada Videotron Huawei 3G 4G dongle is also unlock-able as it also comes with un-customized firmware. There are so many another network and models are unlockable using correct unlock code which has been mentioned in this website. Today, I am sharing with your various network provider E372 Modem firmware and software update. You might already know that firmware and software is an essential part of any Huawei modem and without it you can not use your modem. Firmware update is risky, so be careful while you are changing the firmware.