i have a iphone 4g which was 4.2.1 with baseband 3.10 i when i restore it in 4.3.2 its give me the error 1013 now what i do to restore successfully and jailbreak

I have done with the use of fix-recovery software but my gevey sim not working with ma phone its still on invalid sim what to do
how i unlock ma set with gevey sim i read all instruction care fully and do as they said but phone not unlocked with that tricks