Tried the instructions I found but had no success.
First of all I rooted it with Flashtool => Works
Than I installed CWM => Works
Copied 4.4.2 Beanstalk Rom and Gapps ins CWM folder on SD Card
Booted into CWM, formated everything, installed both zips, restarted => Black => no start => no possiblity to boot in cwm.
Flashed Original Stock rom with Flashtool again => Phone lives again.
Tried a second time => same results....
Where is my failure? Is there an other option to flash from 4.1 to 4.4 than CWM? Do I have to flash Kernel seperatly?
Many thanks in advance.