Ok no problem with codes but your phone should be seen very fast. Try to reinstall samsung drivers, also you can flash the phone with a fw from support (Flashing is in download mode) then retry unlocking.
Here are more videos:
Samsung s8500 unlock with Micro-Box - www.micro-box.com - YouTube Samsung S8500 Unlocked with Micro-Box with Autopatch method - www.micro-box.com - YouTube Samsung S8500 Direct unlock using Autopatch with Micro-Box - www.micro-box.com - YouTube
If you still can't do it I can try to help you viaa team viewer (contact me on sonork)
WBR,
gsm9l
