Note down your Unlock code and Flash Code on Paper for a While. Now you can connect your huawei modem to desktop or Laptop computer. No need to remove SIM CARD from Modem.If you remove it then not an issue. Once your Modem detected on your USB port.Run your compatible huawei firmware update. I have airtel 3g huawei E731 model; I followed above steps but when it comes to update firm wizard step after putting code downloading starts and after few second fails and i get “update error” message.
![Error code 19 yahoo Error code 19 yahoo](/uploads/1/2/5/5/125536617/407265816.png)
![Cd-rom Cd-rom](https://routerunlock.com/wp-content/uploads/2016/02/Huawei-E5351.png)
Are you facing error like error code 2, error code 19, The wireless terminal inserted is not firmware,update wizard can,t work on or any else during the firmware update in Huawei 3g Usb modem?