Current command:
lf em 4x50 wrbl --help
Writes single block/word to EM4x50 tag. usage: lf em 4x50 wrbl [-h] -b <dec> -d <hex> [-p <hex>] options: -h, --help This help -b, --block <dec> block/word address, dec -d, --data <hex> data, 4 bytes, lsb -p, --pwd <hex> password, 4 bytes, lsb examples/notes: lf em 4x50 wrbl -b 3 -d 4f22e7ff lf em 4x50 wrbl -b 3 -d 4f22e7ff -p 12345678