I just updated my iPad and now this happens

[mesogreat]

After installing the latest update my friends iTunes login comes up in the app store. So I looked around and saw a few things to try. I synced it after logging in and out of the store. Ive trying so many things and no matter what that old login will not go away. I have the new one in every spot. I honestly have no idea how it even came back. Oh I had this happen with 4.3.1 jail broken update.

 

[Siggen]

Open up app store on your iPad, go into Featured, the scroll all the way down, click account and logh out.

Edit:
This has nothing to do with jailbreaking. It has to do with you and your friend connecting your iDevices to each others computers, and actually syncing or something. This may also happen if you activate the iDevice with someone elss computer and other things.

 

[mesogreat]

It didn't work. I Even tried to log out and not log back in to see what would happen. It asked for the password for the old account very time.

 

[mesogreat]

A little update. I notice it only happens when I try to update an app. If I get a new one it sees my other log in account.

 

[JxM]

That signals to me that you may have synced his apps on to your iPad. Therefore when the AppStore show that it has updates available, it will update your apps (after logging in) and when it attempts to update the other apps (it requires his/hers account log in info as well. Happened to me before and the only way i found to get rid of that annoyance is to uninstall those apps and redownload them while you are logged into your account.

 

[gtmac]

That signals to me that you may have synced his apps on to your iPad. Therefore when the AppStore show that it has updates available, it will update your apps (after logging in) and when it attempts to update the other apps (it requires his/hers account log in info as well. Happened to me before and the only way i found to get rid of that annoyance is to uninstall those apps and redownload them while you are logged into your account.

This is correct.