Iphone OS 3.1 and iTunes 9 issue

[Kevindp]

I updated my itunes the other day and it seems to be working fine, but I updated my iPhone 3g to OS 3.1 yesterday, after I downloaded the file from itunes, I got a message letting me know "my phone is getting ready for update" after this message, itunes quit out of nowhere.
now, every time I turn my phone on I just get the connect to itunes logo. I tried to reinstall itunes, but this didnt lead to anything.
Also, every time I try to hard reboot to attempt to downgrade back to 3.0 iTunes just quits.
I am now without a phone and would like to fix this issue assp! Any suggestions?

 

[blancoBronco]

try reinstalling iTunes 9, instead of iPhone OS 3.1 or 3.0. it sounds more like an issue with iTunes than your phone

 

[Kevindp]

I've been trying but it hasnt done anything different. I have an ipod classic as well and it syncs with no issues at all

 

[nippyjun]

The update file could be corrupt. Delete the file (or save it somewhere else) and then let itunes redownload the update and try again.