3.13 Difficulty with Firmware Upgrade
Make sure the green light is flashing on and off in one second intervals.
The multicolored upgrade ribbon cable must be used on all units with the exception of the
RS-232 version supervisor.
Updates should be done using the Geokon provided USB to RS232 adapter, part number
8001-7. Other adapters and native serial ports have been unreliable.
Make sure the batteries are fresh.
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