I’m always having a bad day.
If the crossflashing method from an Asus to a LiteOn is explained. How is crossflashing from a LiteOn back to an Asus any different if you have the 1.00 firmware? It’s not hard to figure out.
A second method would be to use the EU to restore the EEPROM and the FU to flash the 1.00 back.
Was your searching “complete”?