Thanks cherry ! it worked for like 50% of the time

sometimes it works sometimes not. I cant really get around why. All temps are in the limits and i deactivated the misuse counter. Its a bit strange but better than nothing. The main problem was to set the codeword for activation to 255. Thats why without a FR its not possible. The MED17 FR ive got says codeword to 1 is function active =/.
Whatever. Thanks again =)