What is the RJ11 connector supplied with the Terminal TER-GX10x for?
Its used for updating the firmware in the GSM/GPRS/PCS engine inside.
How is the firmware update made?
You start the software program on your pc.
The terminal TER-GX10x is switched off.
The RJ11 plug is inserted in the audio socket of the TER-GX10x.
Start the Terminal TER-GX10x and remove the RJ11 plug after 5 seconds.
Now the firmware update starts.
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