first of all I'd like to thank in advance to all of you who'll offer some sort of advice, I tried to jailbreak my iP4 using greenpoison, I did so without coming to the forums first (I actually had no idea of the forums existence), I must've done something wrong because the thing just went black, I went back to itunes and did everything I could to restore it, the thing worked and I used it for about 4-5 hrs no problems found, suddenly the signal dropped, which I didn't find strange but the wi-fi died too, I got a message that said "Iphone cannot make or recieve calls, please connect to itunes to restore" (or something similar) and during that -and the subsequent attemps to restor- I've been getting a 1611 error, I've tried to solve it with some info I've found online (deleting something in the host file and then entering dfu mode to restore) but it didn't work at all, I took it to my carrier company but I probably won't be getting any help from them and I'm just waiting 'til the "mac experts" send my phone back to try to solve it, so if you guys have any advice please do tell me what to do, thanks again.