I have recently updated the download link of Huawei E3272 modem firmware and software update. You can get the download link of Huawei firmware update of Huawei E589 & E589u WiFi router also. Today, I am sharing with you Huawei E355 Hi-link and normal dongle firmware and software update. From now onward, all firmware and software update which is related to Huawei E355 modem, hilink as well as normal dongle will be shared in this article only.
Note : Hi-link modem firmware starts from 22 and normal modem firmware starts from 21. Firmware update may your modem dead, so before updating the firmware make sure what you are doing.
For Unlock code of E355, you can place the order at routerunlock.