mobile

Hi guys,

I've rooted my S4 active couple of month ago. Now i recognised, that the new Lolipop was available and I wanted to flash it with ODIN.
Guess what happened to a dumb'ss like me??? Exactly, it didn't worked.

Description:
- Could start the phone, but always got notifications that the NFC-Service was disabled (again and again). Also some other notifications where on the screen, working with the phone was impossible.
- So i flashed the stock recovery: I9505XXUAMDE
- Then I flashend the stock kernel: I9505XXUBMEA

Now i wanted to go back to 4.4.2 - but when I wanted to flash I9505XXUFNB8 - ODIN said I had no permission and on the Download-Modus-Screen of my S4 there was error: START [224, 1440]
Do you have any recommondadions for me? Although I was flashing my samsungs very often in the past, now I'm bit of confused why it didn't work anymore.

Please help, because I don't want to buy another phone :-/