FULLY CHARGE YOUR PHONE, CONNECT IT TO ACTIVE SYNC ON THE PC

STEP 1:

Run ROMUpdateUtility.exe from folder STEP1, allow the flash and reboot and let it finish all its tasks on first boot




STEP 2: 

Run DiamonCustomRUU.exe from folder STEP 2, allow the flash, and reboot and let it finish all its tasks on boot


STEP 3:

Copy DiamUnlock.exe from folder STEP 3 onto the the 4GB storage card of the phone, now goto file explorer in the phone, and run DiamUnlock.exe, it will open up the options to SIM UNLOCK and SECURITY UNLOCK - tick these boxes and press UNLOCK


If all is well it will say UNLOCKED, now reboot your phone with any simcard in, YOUR DIAMOND IS NOW UNLOCKED !


(Older versions of DiamUnlock.exe closed very quickly and you had to try many times to click on the unlock buttons, I have included the fixed version I think that does not close quickly and should be very easy to unlock)

