It was a stupid move for me to check Nand erase all option, but i did it!
At first i was not able to go in to recovery menu, only in to donwload mode.
I flashed only a.pit file via Odin 3.09 and then i was able to get in to the Recovery mode - ClockworkMod Recovery v188.8.131.52.
When i tried to wipe data/factory reset or to install zip i am gettinf error messages "Error mounting /data" or "Error mounting /sdcard/.android_secure"
Then i tried to flash the stock 4.4.2 firmware via Odin, but i am getting FAIL message on the NAND WRITE step.
What i have to do now, to get back my phone in working order ?
Thank you in advance!