hi guyz, i am new here. this is my 1st post. ok, lets talk about business lol. i have an iphone 3gs 16 gb(currently jailbreaked and unlocked via what method i do not know) running at ios 3.1.3 and modem baseband is 5.12.01 i think. i want to upgrade my ios to 4.0.1, or 4.0.2 like this. now some information. i tried many ways. like downloaded custom firmware(4.0.1 modem baseband 5.13.04) and tried to cook it with snowbridge 2.2. it created a custom ipsw file which i tried to restore with help of itunes to my iphone(through in recovery mode). tried many times, but every time it showed an error like 16xxxx. and funny thing is now my iphone is not going to recovery mode also. its just shows apple logo(it is like half cut) 2 times and then off. but i can start it normally and can use it . in my settings i can see winterboard at down. and i did not see shsh written in my cydia(though i saw it previously written like shsh ios 4.0.1, 4.0.2 yes something like this. then i tried to save shsh through tinyumbrella, and it said it saved 4 shsh files succesfully to my pc and saurik server. but still i cant see shsh written in the upper side of cydia. thanks for reading all of this junk! so can anyone please help me to upgrade my iphone to ios version 4 with jailbreaked and unlocked? thanks in advance.