ISP reset for XA-G49

[Aleksander Ornaf]

Hello,
Is there any method to remotely reset XA-G49 during ISP?
I've tried a method using a command
    :02000005800178 = read signature byte - device id #1(C2H) (WDT feed)
mentioned earlier on the Forum for 89C51Rx2 but it seems not to work for XA-G49.
Thanks in advance for help,
Alex