HOW TO UNLOCK HUAWEI MODEM E173

Here are procedures on how to unlock Huawei Modem E173 with 35series of IMEI

First you need to download and install QPST.2.7.378. after finishing to installation, plug in your Huawei E173 with different simcar that can not support on the modem then you will be notified by error that you can not use that simcard then click on exit

1: Now go to Device Manager> port then locate your Modem then note down COM port

2: Now search for the QPST .2.7.378. Start> Program> QPST 

3: Then click on Add new port.. the one you note down 

4: Uncheck "show  serial and USB/QS Diagnostic port only.

5: If you selected the correct port then it will shown like this

6: Then on the Tab click on Start clients then choose software Download 

7: Now the LIFE OF YOUR MODEM DEPENDS ON THIS STAGE your must be very Careful. Click Back up tab then browser then choose location that will save your Backup, then click on start and leave it till it finish to backup your modem. remember that it finished complete and its saved on the location that you selected  (.qcn) then continue with other stages. then quit QPST 

8: Now connect your computer with internet by phone or wireless or other modem that  but not huawei 

Now open Huawei Modem Flasher  then on your left hand side choose Com port of your Modem, Do not Worry you will see different port but its written "3G PC UI  interface"

9: then click Read Modem info Tab. it read your modem info thet it says OK. if its FAIL then there is problem on internet connection.

10: Then look on the tab then click "select Firmware" , Then choose "Extract from EXE"  Then locate Firmware file E1731Update_11.126.15.00.00.B416  and click ok

11: Uncheck 05.bin like this

12: Then On the tab choose "Flash Modem"  then choose "normal mode" then wait till the box promt up and press OK after modem entered on download mode

13: wait while new Firmware installing on your modem 

14: Remember you will get error on 07.bin. don worry, wait for while then it will finish 

15: Now unplug your modem and plugin again you will see that modem won't be able to have network and this becaue it loose its IMEI, So you need to restore your modem. To do that you need to back on first steps on how to open QPST  then.

Configuration then add COM port > software download insted of click back up tab, click on restore tab then click browse then locate the file you created Backup (7 stage) then click start and wait for while and it will finish 

16: after finish quit QPST then unplug your modem and plugin your modem. if you followed the procedures well your modem 100% unlocked permanent and you may use for any simcard, but remember it shows the same IMEI as Before unlock.

If you success don't forgot to leave your comment bellow