REQUIREMENTS
The requirements are very similar to the ones with the tutorial on  
How to unlock HUawei E303 with DC Unlocker 100 percent working with MTN ,Orange and Nexttel modems


A computer connected to the internet

E303 MODEM, It can be from MTN, ORANGE OR NEXTTEL.

A  PayPal account/credit card with at  least 5 euro or other payments methods which you will see in this post.

Dc unlocker software



STEP 1.
Download and install dc unlocker if you don’t have it installed.
Step 2
Launch dc unlocker==>; click on buy credit.

With your account credited, download a Huawei Hisilicon Firmware  writer at  
Here is a list of modems that will work with this firmware


E173
E1756
E303
E3121
E3131
E3231
E3236
E32
E3531
E3533
E357
E361
E5170
E5220
E5221
E5251

E5331
E5332
E5372
E5375
E5756
E5775
E5776
E586
E3256
E3272
E3276
E3331
E3351
E351
E352
E35

STEP4. Insert  a sim from another operator into your modem.  For example, if you are having an orange modem, insert an MTN sim card(Alien sim). Connect the modem to your PC and run the firmware writer.
STEP 5.  Log in with your user name and password. When login is successful, your modem will be successfully be detected.
STEP 6.
Click on Enter support area button and from the open webpage, navigate to Firmwares > Huawei  HiSilicon_platform >รจE303 >E303H_Not_locked_Firmware and download the .dgtk file.

Go back to the firware writer and open the .dgtk files. 
You will receive a confirmation message when the process is completed.
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