rvanstory
Well Known Member
Trying to determine if anyone else is experiencing a heading bug "glitch" after updating their G3X touch to V9.0 software. Here's my story.....
Immediately after updating my G3X Touch software to V9.0, I began to experience a yellow heading caution. It seemed random, and temporary, but would happen EVERY flight right after takeoff during turnout, and 2-3 more times during flight. My avionics vendor suggested I recalibrate my GMU11 magnetometer. It did not fix it.
Then, I had a discussion with a fellow RV-10er hangared at my field, and discovered he was experiencing the EXACT same thing! And his problem started right after V9.0 update, just like mine. Garmin tech support suggested same fix, recalibrate the GMU11 magnetometer. Didn't fix his problem either.
We both have G3X touch, GMU 11 magnetometer and G5 backup PDF.
After learning from each other we both decided to revert back to V8.92 software to see if the problem corrected itself. Both of of us still had the problem.
Then after comparing LRU updates, discovered that in the V9.0 update, the G5 updated to V8.0, but the G5 did not revert back to old version when we reverted the rest of the G3X system to V8.92. This made me wonder if the G5 update could be the source of our issue? So, I have now flown 2 flights with G5 turned off, and NO ERRORS. When I land and take back off with G5 turned on, error shows back up.
However, my friend did the exact same thing (revert to V8.92 and fly with G5 turned off) and he is still having the same issue.
So, we are puzzled to say the least.
Question, has anyone else with G3X, GMU11 & G5 had the same issue after latest software revisions? Does anyone have any ideas on how to diagnose the source? It seems too coincidental that we both developed a hardware issue at exactly the same time after updating to V9.0. Looking for clues.
Screen shots are included of the caution messages we are experiencing.
Immediately after updating my G3X Touch software to V9.0, I began to experience a yellow heading caution. It seemed random, and temporary, but would happen EVERY flight right after takeoff during turnout, and 2-3 more times during flight. My avionics vendor suggested I recalibrate my GMU11 magnetometer. It did not fix it.
Then, I had a discussion with a fellow RV-10er hangared at my field, and discovered he was experiencing the EXACT same thing! And his problem started right after V9.0 update, just like mine. Garmin tech support suggested same fix, recalibrate the GMU11 magnetometer. Didn't fix his problem either.
We both have G3X touch, GMU 11 magnetometer and G5 backup PDF.
After learning from each other we both decided to revert back to V8.92 software to see if the problem corrected itself. Both of of us still had the problem.
Then after comparing LRU updates, discovered that in the V9.0 update, the G5 updated to V8.0, but the G5 did not revert back to old version when we reverted the rest of the G3X system to V8.92. This made me wonder if the G5 update could be the source of our issue? So, I have now flown 2 flights with G5 turned off, and NO ERRORS. When I land and take back off with G5 turned on, error shows back up.
However, my friend did the exact same thing (revert to V8.92 and fly with G5 turned off) and he is still having the same issue.
So, we are puzzled to say the least.
Question, has anyone else with G3X, GMU11 & G5 had the same issue after latest software revisions? Does anyone have any ideas on how to diagnose the source? It seems too coincidental that we both developed a hardware issue at exactly the same time after updating to V9.0. Looking for clues.
Screen shots are included of the caution messages we are experiencing.
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