How can I upgrade and/or access iTunes on a jailbroken Iphone 3GS version 3.1.2 with firmware 05.11.07?
iTunes should still be accessible using the iTunes icon. Are you not able to load iTunes, and if so, what is the issue? Does it crash constantly or is there any error message?
It should still connect to itunes after the jailbreak so it could be a number of issues. I'd suggest factory reset, set back up on itunes and then re-jailbreak. I dont really mess with ios stuff anymore though so someone else may have a better idea...
I had a jailbroken 3GS all I had to do connect to itunes but you can not do an update.