You must cut all conections to pins: 20,21,17,2 from both side of PCB.
MCU can be 68HC11E9 or 68HC11A8. I use prog11.exe to programm mcu. 
In attachment is sqr88.s19 hex file for prog11. 
Code is 0663. 
If you try to programm with motor11.exe use woddsq88.eep but I did not 
try with motor11. 
Code is a same: 0663. 
Also, you must put 8MHz christal.

2nd solution:
No need to "cut " any of connections
Simply use service socket behind the mecha
Connect Rx Tx Reset Mod B then turn on the radio
and start bootstrap process
That all...

->
I try to use TEST socket but without succes, so I must to cut PCB.
MCU was 68hc11a8.
If someone want to try, test socket looks like:

View from a top
8 7 6 5
-------
> ! 
-------
1 2 3 4

1 PD1/TxD (pin 21 MCU)
2 PD0/RxD (pin 20 MCU)
4 +5V
8 MODB (pin 2 MCU)




