i have the problem of the greyed WiFi and my iphone doesnt ring when i have a call so in order to fix it i installed insomnia from cydia , now i want to upgrade to 4.0 so i need to know if i will be able to install insomnia in OS 4.0 before the upgrade
be care full and read alot before upgrade bcoz many of like me has upgraded to os4 and our iphones got again locked and there is no chance to install cydia in it, so if your iphone is factory unlocked then mayb its possible but if your phone is unlocked by any network then u should wait like to let come jailbreak of os4 1st then upgrade it.....