Hi all,
i gave up, it seems to be impossible to update my Phone. Tried it several times (normal Mode, Advanced Mode, Manuel Install) and always get the same error. When Rebooting i got d dead Android with error
system partition has unexpected contents
Error in /cache/fp_update_999.zip (when i try manual update), in normal Mode its a different file. Phone Memory still has 42% free space.
Never had any trouble updating (once i need Advanced Mode).
I’ve got one of the First 17000 so i started with initial Firmware and made all Updates till the latest one. Never Rooted nor other “special” Programs 
Heinz