Chapter 10 Troubleshooting
SMART7 Installation and Operation User Manual v6
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Corrupted or bad data within the receiver Non-Volatile Memory (NVM).
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An unsupported Auth Code.
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The expected main firmware image could not be found by the boot code. This is possibly due to an error dur-
ing the main firmware loading process (i.e. WinLoad, SoftLoad, etc.).
Safe Mode exists to allow users to take steps to recover the receiver after such an error occurs. Potential recov-
ery steps are described in
Safe Mode is indicated by an error bit in the
RXSTATUS
log.
10.4.1 Reset Loop Detection
In order to determine when the Safe Mode error should be triggered, OEM7 receivers have the ability to detect
when an unexpected reset has occurred during the boot process. If a Reset Loop is detected, the
Reset Loop
Detected
bit is set in the
RXSTATUS
log.
This bit is only a warning and the receiver may still be able to operate correctly. The receiver will allow several
unexpected resets to occur before triggering the Safe Mode Error, at which point the receiver will not track GNSS
satellites.
10.4.2 Recovery Steps
If the
Safe Mode
error bit or the
Reset Loop Detected
warning bit are set in the
RXSTATUS
log, take the fol-
lowing steps to diagnose and recover the system:
1. Request the
SAFEMODESTATUS
log and determine the current
Safe Mode State
of the system.
2. Reference Table: Safe Mode States in the
Agriculture Commands and Logs Reference Manual
and find the
suggested actions for the current Safe Mode State.
3. If the suggested actions do not resolve the issue, contact NovAtel Customer Support.