Unlock Huawei E173z,u,s-1&2 E303

Just feel like to share this, which some people know and some didn’t know… But due to high demand for it from people that find it difficult to unlock there E303 modem.

Huawei E173z, u, s,-1&2 E303 Modem types comes with customize firmware and it can not be unlocked via imputing unlock code directly.
So this are the steps to unlock it.

Note : Make sure that you have sufficient battery backup while you flashing your modem, if any interruption while flashing then your modem will be gone forever.

Step by step guide to unlock your E173z, u, s,-1&2 Huawei E303 HiLink Modem Free :

1. Download the firmware version 21.157.31.00.850 or higher from the download link which is provided below. Now download the universal master code and huawei modem code writer tool also from the link below.
2. Now disconnect the internet and close all the running software / dashboard / connection manager of modem.
3. Now run the universal master code and generate the flash code of your IMEI through Huawei tab or from my first thread when u generate ya unlocking code and note down somewhere.
4. Now run the Firmware version 21.157.31.00.850 or higher to flash your modem with generic firmware. When firmware will ask for password then provide the password as flash code which you have already noted.
4. Now after a few minutes it will be finished. Now run the Huawei Modem Code Writer tool and click on “Please Select Com Port.
5. Now it will detect the com port of your
modem. Now just select it and click on unlock Modem. It will ask you for unlock code. Just provide the unlock code that you generated from my first thread.

Boom Boom… Ya modem has been unlocked.. Enjoy

Download Links
Download Huawei Modem Code WriterTool

Download Universal Master Code

Download Firmware to unlock

Happy Unlock Huawei E173z,u,s-1&2 E303

credit to guruslodge.com