How to convert 40bit to HEX

Sub-GHz
#1

HI.

how convert roger number rfid card to emulate rfid ?
40bit : 30073865085
24bit: 0009094013
8,16bit: 138,50045

thiis is my lost card, how to add flipper to emulate ?

#2

I think just plugging the 40-bit number into a calc and doing the conversion will work. So, try adding 07-00-8A-C3-7D as EM4100 key, 125kHz RFID -> Add Manually.