Iphone 3gs 4.3.3

hi.. friends....need ur help.......i bought this used iphone 3gs 4.3.3 jailbroken....i want to restore it to factory settings keeping same firmware 4.3.3..... i dont need it to be jailbroken.......i was trying erase all data from iphone and it get stuck on apple logo for an hour.....then i tried dfu mode while it was stuck on apple logo and then it went to main home page but my jailbroken apps and music was still there................didnt get delete.......then i down ispw firmware 4.3.3 file and tried to restore iphone then i got 3194 error. to fix 3194 error , i changed settings in host file and it still doesnot work.........



i need to restore my iphone to factory settings like new.......... plz help me

 

but i want to keep the firmware 4.3.3

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i dont know about previous owner but i saved SHSH using tiny umberalla......if restore it to 4.1 wht are side effects of it as compare to 4.3.3