supervisor / root password generator from Serial Number

there is a free root password generator , but it only works for older generation firmware.

https://get.dyn.mork.no/zyxel_pwgen.tar.gz [mirror: https://github.com/theodric/pastebin/blob/master/zyxel_pwgen.tar.gz]

zyxel support can generate the root password, but only does it if the device is covered by support (1st jear or other contract).
the free pw generator works only for devices with SN: starting with S20…. or S21….
newer SN: like S22….. it does not work.
most likely it is due to a updated ld-uClibc.so.0 file.
as many would need the root password , some funding should be made and pay a programmer to update the existing pw generator.