How to Unlock Huawei 3G Modem E173, E1550, and E1750? Like ZTE and Micromax, the Huawei is a leading manufacturer of 3G Modem as we all know. Before starting the unlocking process of Huawei modems, there are few things which you should know. 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.
How to unlock your Huawei E173, E1750 or E1550 data card?
1. Download Universal Master Code.exe from the download link which is provided at the end of the article. Enter your 15 Digit IMEI number in Huawei tab, as shown in the below screen and press Calculate for Unlock Code and Flash Code.2. Plug your data card with an unaccepted SIM to your PC.
3. For E173, It will prompt for an unlock code, just enter the Unlock Code you got from Universal Master Code.exe. (Your Huawei E173 modem is now unlocked and can be used with any another SIM after
Note : But, E1750 and E1550 models do not prompt for unlock code, hence, you have to download Huawei Modem Code Writer from the below link and continue to step 4. 4. Extract the zip file and run HUAWEI_MODEM_Code_Writer.exe
7. Press “Unlock Modem”, a pop-up window will appear asking you to enter the Unlock Code.
8. Enter the Unlock code from Universal Master Code in the field provided and click ” OK “.
9. Click “Unlock Modem”. Your Huawei modem E1750 or E1550 is now unlocked and can be used with any another SIM after creating a new profile.
Note : The above guide cannot be applied in customized firmware modem, to unlock customised firmware you need to flash the modem first, then it will accept the unlock code
Download Universal Master Code Calculator Final 2013
Download Huawei Modem Code Writer Tool
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