iPhone 3G and iTunes

[keithboylan]

I changed my email address on iTunes Store and when I log on its fine but when I try to upgrade Apps on iPhone the old email comes up and says login is incorrect how can I change this email to new one tried to sync iPhone with iTunes but this does not change

Help Please

 

[davyreins]

Try restoring and then syncing again. I don't know if that would work but it's worth a try

 

[keithboylan]

I found solution that if I sync Apps with iTunes on Mac to iPhone the email changed automatically now I can log onto iTunes on iPhone as email changed