I have an iphone 3gs, ios 4.3.5
I am trying to test an app for somebody who is developing a game,
and every time I try to sync it in itunes, I get an error: 'the signer is not valid'
I jailbroke the phone to see if that would work and I'm still getting the same problem.
I need somebody to walk me through the steps to get the app working for me,
without me having to buy a developers account.
I am new to this so I need someone to take baby steps with me.