Changed my Apple ID and forgot to update it on 2nd iPhone which still has old Apple ID and can no longer get password for old ID so how can I update Apple ID on 2nd phone?
iPhone, iOS 6.1.3
If you updated your existing account then try logging out of it on the phone by tapping on the id in Settings > iTunes & App Store and then log back in and see if that 'refreshes' the account on it. If you created a new account then any content that you purchased/downloaded via the old account will remain tied to that old account, and only that old account can download updates to its apps.
Changed Apple ID now need to get changed on 2nd iPhone with old Apple ID
