Reading the card in my computers (PC & Mac) had added some files to the card and this caused the problem. Once they were deleted it worked fine.
One of the few solutions I've ever found at the Garmin website/forums.....
I just bought a lightly used 76CSx and it is acting strange.
With no SD card inserted, it will function normally.
If I put in a Bluechart SD card, it will power up and function normally, but when I power it down using the power button I get a blank screen and a continuous tone from the speaker.
The only solution is to pull the battery.
Last edited by BCKayaker; 10th March 2018 at 09:27 AM.
Reading the card in my computers (PC & Mac) had added some files to the card and this caused the problem. Once they were deleted it worked fine.
One of the few solutions I've ever found at the Garmin website/forums.....
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