I was reported this strange case.
As we all know, or should know, the fw 4.024 is CRP2, then as the old 3.099, you riscriveva the cpu with the jlink and was inspired by the sd.
Well, a friend with the 4.024 have finished the first 30 token and jflash continues to tell him the cpu is not found.
So I replicated the case, without, of course, the end of the token.
Soldered the cable to the jlink on kess v2 3.099 and put 4.024, and rebuilt the SD card, ok the kess works.
Without desoldering anything, restart the j-flash arm and "cpu not found"
What the hell happened? The cpu should not be blocked.
Can not connect more without even having disconnected the cable 20 pin from kess.