IMPORTANT: Before proceeding, remove sim card and enable "Qualcomm background settings" on your phone.
Open dial pad
NOTE: Special code to enter Diagnostics menu will not work on "emengency call" dial pad! It will work only via marked dial pad icon on image above
Enter code ##2846579# and select "Project Menu"
Further "Background settings" and "Qualcomm background settings"
Switch it on. Restart phone. Then connect it to PC and install drivers
Launch DC-unlocker software
Detect device by selecting Huawei phones from manufacturers drop down menu list, "Select model" leave on Auto detect (recommended), then read the info on software for how to correctly prepare phone for detection. After phone is prepared, connected to PC and it's drivers installed, click magnifying glass button
Wait till program detects it
Open Server tab, enter your username and password that you received after credits purchase. Click "Check login". (you can buy credits here www.dc-unlocker.com/buy). If DC-Unlocker/Vygis/Rocker/Infinity dongle is connected, only click " Check login "
Open Unlocking tab, click “Unlock” button
Wait for device to be unlocked
After you see that phone was successfully unlocked, restart it to complete procedure. Now you can use it with any SIM card.