Hitag2 SNIFF-PWM list stored

[banannd]

Hi,
I have problem with SNIFF-PWM list stored option, becouse when I do procedure on my RFIDler:
SET TAG HITAG2
SNIFF-PWM C
AUTORUN SNIFF-PWM S
SAVE
• Power RFIDler from USB battery
• RFIDler antenna on RWD, present tag (n times)
and comands "SNIFF-PWM L" return:
"No HiTag2 PWM stored"
where is the problem?