Put phone in manufacture mode. On dialpad type *#*#2846579#*#*, select “Project Menu”, “Background settings”, “USB ports settings”, “Manufacture mode”. Then connect it to PC and install drivers (If you do not have separate driver pack for your device, install HiSuite software).
Step 1
Download HCU tool here
Launch software
Step 2
On “Account” tab enter your user name and password. Click “Check account” button and wait to be logged into the server
(You get account after credit purchase, check “BUY” page)
Step 3
Press “Read phone info” button and wait until phone is fully detected
Step 4
Select “Repair UMTS” tab
Step 5
Read warning message. If you agree with terms and want to continue press “OK” if you do not wish to continue press “Cancel”
Step 6
Put a check mark next to IMEI field
Step 7
Write in correct phone IMEI number and press “Repair”
Step 8
Wait for repair process to finish, then disconnect and restart mobile device
