[iPhone 3GS][FW Unknown] iPhone Disabled

EDIT: Please follow this thread In the 3GS General Talk


Hello everyone,

Here is my problem, My boss gave me a brand new iPhone 3GS 32GB to fix it for him (it belong to his relative), his 7yrs daughter managed to put a passcode and she does not remember it they tried many times and now the phone is "iPhone is disabled".

Thats fine since the phone is still new and no data on it I went to restore it BUT the problem is:

1- iTunes gives error and wont accept any firmware ver. even the latest from iTunes it self.

2- I have no Idea what so ever which firmware its sitting on, but based on the S\N on the box: (88019) its very new.

3- Not sure if it is jailbroken BUT I tried different SIM cards (vodafone, etc..) and it was working and could receive calls.

Other than the above info I dont have more I think..

Any Help would be very much appreciated as I have been searching a lot the last couple of dayz..

EDIT: Sorry wrong forum it should go to 3GS General Talk...