Appendix D: Troubleshooting - Xeos Technologies Inc. Kilo User Manual

Appendix D: Troubleshooting

Red LED/blinking
Indicative of a self-test failure. A flash memory dump will print self-test failure codes at the
bottom of its memory:
i - Iridium - Modem cannot communicate with CPU of Kilo; contact Xeos
f - Flash - Flash error is showing as a full chip; erasing the chip may resolve this issue. It should be
noted that if the error is flash, a dump of the flash will show no information.
t - Battery taps - Batteries are either oriented incorrectly, or a tap is too low.
No Iridium messages (assuming no self-test failure)
 Determine the nature of the issue (antenna-related, system related or location-related)
o Ensure the device's Iridium IMEI is active on the Iridium network with your service
provider.
o Ensure the device is provisioned to send messages where intended.
o Change the location of the device; place the device in an area with as much total view of
the sky as possible.
 Dumping the flash memory will display all Iridium sessions that occurred, regardless of
success.
No GPS/poor GPS
 Change the location of the device; place the device in an area with as much total view of
the sky as possible.
 Dumping the flash memory will display all GPS sessions that occurred, regardless of success.
o Check the number of satellites seen (greater than 4), SNR level (greater than 38), time
the GPS session was on (less than 60 seconds for first fix, less than 20 for other fixes).
Device is transmitting too frequently/not enough
 Check intervals with $scm command
 Change timer interval as required
Device is going into alarm when it should not (Watch Circle)
 Watch circle centre is in the wrong location or an unsatisfactory radius
o $setcircle X Y Z to change circle and radius
o $setcircle 0 0 Z to change radius only
Device is not surfacing when it should
 Device is connected to material that is interfering with the water sensor (metal)
 Device was not submerged enough to create a high enough rolling average for change
 Device registered surfacing, but obstruction prevented Iridium message transmission
o Dumping flash memory will show all water sense and Iridium events for investigation.
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