"This computer is no longer authorized for purchased items that are on this ipad". DESPERATE FOR HEL
I have tried everything! NOTHING WORKS!
Solution 1: Log your Apple ID out of iTunes, and then log back in. Authorize both iTunes accounts.
Solution 2: Delete the iPhone app that has been downloaded from different Apple account (account used for building app or downloading app)
Solution 3 : If you purchasing apps with 2 unique Apple/iTunes IDs
First de-authorize and signed out of all iTunes on all your Mac computers.
Log out of iTunes on iOS devices.
Now sign in to iTunes on 1 Mac and 1 iPhone with main iTunes login.
Authorize Mac with main iTunes account login.
Then authorize for any other Apple accounts you may have.
Finally sync Device.
Solution 4:Instead of syncing just make some changes in any videos or photos and press Apply.
Thats all. iTunes will sync normally. Dont press sync.
Solution 5: Tick the check boxManually manage Music & Videos.
Then click Apply, and sync button. ( it will return to usual authorisation error. dont worry.)
Again unchecked the box for manually manage music, click apply and sync.
Solution 6: De-authorize your computer and uninstall iTunes
Clean your computer with CCleaner.
Reinstall new version of iTunes and authorize your computer again.
Open iTunes on the computer
From the menu bar select Account > Authorizations > Authorize This Computer
Enter password for your Apple ID, done.
PLEASE HELP! I DON'T KNOW WHAT TO DO ANYMORE! =(