use setool box for unlocking and dcu60 cable.
1. Identify ur phone press & hold "c".
2. Check cid... if 52 than.
3. Add flashfiles of k800 cid52.
4. Go to settings tab....check options...1.use csca server, 2.enable alternative security bypass 3.complete phone after flash, 4.unlock after flash.
5. Press flash button and wait for phone to complete.