I jailbroke my friend's iPhone 3G the same way I did mine. Funny thing is I never tried my YouTube just cuz I dunno I haven't yet. She did and hers is perfectly fine. I have an iPhone 3G on T-Mobile running 3.0 jailbroken with redsn0w with a custom FW I downloaded from somewhere I can't remember. I used the same FW, same redsn0w, same computer, and same everything to JB her iPhone 3G the way I did mine (I did mine first). My YouTube keeps saying "Cannot Connect to YouTube" even on wifi.
I have no idea why hers works and mine doesn't. I thought it was odd when I updated to OS 3.0 through iTunes and my phone didn't give me the plug and itunes and slide for emergency call screen, it just jumped straight to my SB. Is there a way I can fix this without rejailbreaking? If I do have to rejailbreak with redsn0w (I used the latest version btw) is it possible that my YouTube still won't work? Thanks in advance.