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  #11  
Old 06-14-2022, 08:48 PM
tturner tturner is offline
 
Join Date: Jul 2008
Location: Fayetteville, GA
Posts: 183
Default

I will check the comm switch pin 20 tomorrow and give you a reply.
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  #12  
Old 06-15-2022, 09:51 AM
tturner tturner is offline
 
Join Date: Jul 2008
Location: Fayetteville, GA
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Justin

Pin 20 grounded was the problem. I had wired it to a switch on my stick that I thought was a momentary contact but turned out to be a toggle. I had never tested the flip/flop feature. Clipped the wire where they connected and problem fixed. Now that you are on a roll I have one more issue. When I try to upgrade the firmware all the lights across the top of the panel flash at once at about a one second frequency. instructions say the lights should flash from left to right showing the progress of the update. I reformatted the SD card twice. Any suggestions?

Thanks everyone for you input.
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  #13  
Old 06-15-2022, 09:00 PM
Pdtofly Pdtofly is offline
 
Join Date: Jan 2012
Location: Reno, NV
Posts: 559
Default Try this

Out of the install manual.

5. The GMA 245 will begin checking the SD card for updated software.

a) Do not turn the GMA 245 off or remove power during the update process.

b) The top row of keys, from left to right, will indicate the progress of the update process.

c) If a problem is encountered during the update process, all keys on the top row will flash at a 1 Hz rate.

6. If a problem is encountered during the update process, follow the below steps for possible solutions.

a) Use the Pilot Knob to power cycle the GMA 245, then perform the process again.

b) Attempt to re-download the GMA 245 software to the PC, recreating the loader SD card, and perform the process again.

c) Recreate the loader card using the recommended Sandisk® brand 4GB SD card, and attempt the update process again.

d) If still having difficulty performing the update, contact Garmin Aviation Technical support.

OK, in step 5(b), it says blinking left to right. You are correct in that. You are getting step 5(c), which means a problem updating.

You have tried doing step 6(a) and (b), so first are you using the recommended ScanDisk 4GB SD card? If not, at least try another 4GB SD card, then a ScanDisk branded SD card. Sometimes a single SD card can be PITA.

If not, then try step 6(d) and contact Garmin Tech support.

Good luck.

Brian
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  #14  
Old 06-16-2022, 03:01 PM
tturner tturner is offline
 
Join Date: Jul 2008
Location: Fayetteville, GA
Posts: 183
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Will order a new SD card.

Thanks
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  #15  
Old 06-16-2022, 03:29 PM
rocketman1988 rocketman1988 is offline
 
Join Date: Jun 2010
Location: Sunman, IN
Posts: 3,062
Default Also

You may try formatting the sd card, too. The garmin units also seem finicky about the format especially if done on a Mac; I have had a brand new sd card not work, formatted on a Mac and not work. I then located an ancient pc laptop, formatted the card, and it worked…
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