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Why does nobody talk about bad solder joints on the Garmin G1000 SD card slot?

I dropped $400 on a new SD card for our King Air's G1000 last month after the terrain database kept failing. Turns out the card reader had a cold solder joint on the back of the main board. A buddy in avionics at the FBO pointed it out after I spent 3 hours troubleshooting. Now I keep a microscope in my toolbox for quick checks on these connectors. Has anyone else run into this on the older G1000 units?

2 comments

2 Comments

charles6405d ago

Wait, you used a microscope to find that cold solder joint? That's wild but honestly genius. My buddy at the local avionics shop told me a story where a Cessna had the same exact issue - the terrain database kept corrupting mid flight on a cross country. He spent a whole weekend swapping cards and checking firmware until he finally took a magnifying glass to the G1000's motherboard. Found a hairline crack right on the SD slot's solder point near the back edge. He just reflowed it with a little flux and a soldering iron, and the unit worked perfect for years after that. It's crazy how something so small can make you drop a few hundred bucks on a new card for no reason.

ross.lily5d ago

Microscope trick is smart actually. Saved you what? Like 3 hours of headache next time.