- Plug in the multi-colour ribbon cable
- Connect the RST wire to GND wire
- Connect the red wire [POSITIVE] from 12V Power supply
- Connect the black wire [GND] from 12V Power supply
- Power on
- The MCU LED will start to blink
- GSM LED start to blink with fast flash around two times per second
- When connected to the GSM network, GSM LED will start to blink with slow flash once per second
The unit is now ready for remote SMS programming.
TIP See troubleshooting if the above does not happen.