They may be permanently installed on the device or update able As we know we can unlock some Huawei modem by updating or downgrading (Flashing) the firmware, In this article I will discuss on same.you can download the firmware upgrade file from the our Huawei Firmware Portal.In this post we will show, how to unlock a 3G Data Card (USB modems) like Huawei E 173, E 1731, Huawei E1732 & E 175, Huawei E153and other models.For unlocking the E173CS-1 latest firmware read our latest post : Unlock Airtel E1731 Datacard Why you need to unlock a 3G Data Card: If you bought a 3G datacard from service providers like Airtel, Idea, Aircel or Reliance,the data card will work only with the service providers SIM.First, make sure that your data card is detected in your desktop/laptop / PC and you should know your IMEI number (IMEI number is a 15 digit number printed on the device).To know the 15 digit IMEI of your modem, see the back side of the modem.1.Internet has plenty of information on how to do that. Following these instructions will also resolve Error Code 19 and "brick" with Error Code 13 (rapidly flashing green led).Which is also why some steps may seem bit pointless at first. I've used 64-bit Windows 7 and Windows 10 PCs myself.
Huawei Mobile Partner Software is works on almost Operating System Like All Version Of Windows (Windows 7, Windows Vista, Windows Xp), Mac (Lion), Ubuntu, Linux.
There's excellent writeup and step-by-step instructions in English from Ivan. This is because they're LMT branded and were superglued shut with LMT SIM card inside.
Firmware is nothing but the program code which contains of the control program for the devices.
Image Credit :- Modem Unlock Download version 21.0.284 Normal setup (Installer setup.exe) from below link for suitable operating system Mobile Partner 21 Software For Winodws (7/ xp/ Vista) Mobile Partner 21 Software For Linux Mobile Partner 21 Software For Mac Download version 21.0.284 Update Wizard (Flasher To Modem) from below link for all operating system it will change your modem Dashboard with mobile partner Mobile Partner 21 software Update Wizard For All Operating System Huawei has released mobile partner 23 in 2011 which supports latest Up-Link Modems which has fast access with latest drivers and lots of new features which you can find below.
Download version 23 Normal setup (Installer setup.exe) from below link for suitable operating system Mobile Partner 23 Software For Winodws (7/ xp/ Vista) Check out following article may help you to setup your Huawei Modem in different operating system.