Forums > Windsurfing   Gps and Speed talk

Fixing GT31's??

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Created by hardie > 9 months ago, 14 Feb 2021
hardie
WA, 4129 posts
14 Feb 2021 11:06AM
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Hey Guyz & Galz,

I have 2 spare GT31's, one works, charges, shows readings of speeds but won't record to card, or save to card. The other GT31 seems dead, won't charge?

Are there any repairers of such things?

decrepit
WA, 12761 posts
14 Feb 2021 12:22PM
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You could ask your Captain, if you're not in a hurry. Or you could put your name down for a mini motion, 10X better than a GT31

hardie
WA, 4129 posts
14 Feb 2021 12:33PM
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Select to expand quote
decrepit said..
You could ask your Captain, if you're not in a hurry. Or you could put your name down for a mini motion, 10X better than a GT31


sailquik
VIC, 6165 posts
14 Feb 2021 8:32PM
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It's so far back in my memory that I am not entirly sure, but I think one can download the internal memory via the usb port. I cant remeber exactly how. Possibly with RealSpeed? If that is correct, you can still use that one.

decrepit
WA, 12761 posts
14 Feb 2021 9:29PM
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Yes, that jogs my memory as well I think it was with "navilink" but that maybe hard to come by now. I should have a copy somewhere, but where?

Te Hau
493 posts
17 Feb 2021 7:01AM
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Select to expand quote
decrepit said..
Yes, that jogs my memory as well I think it was with "navilink" but that maybe hard to come by now. I should have a copy somewhere, but where?


Navilink is still available to download via Locosys.
I just did so, still won't connect. (COM PORT error)
If anybody works it out can they give us the word.
I have a young fast guys (record) file, won't load onto card but the file is there in data logger.

decrepit
WA, 12761 posts
17 Feb 2021 8:26AM
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so have you got the download link? I couldn't find any firmware downloads, only documents.

decrepit
WA, 12761 posts
17 Feb 2021 3:47PM
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Finally found it it's in the "end of line" section
www.locosystech.com/en/product/Genie-GT-31-BGT-31/gps-handheld-data-logger-gt-31.html

I've installed it but I don't have a GT31 here to rest it with, Hardie where are you?

TRIMMER
QLD, 217 posts
18 Feb 2021 9:50AM
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The GT31 wont recognize sd cards bigger than 2g. This might be the issue.

Te Hau
493 posts
18 Feb 2021 8:34AM
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TRIMMER said..
The GT31 wont recognize sd cards bigger than 2g. This might be the issue.


No, it does see the card (I have several).
In 'Data Logger' ....'save to card' there is no data (he wiped it playing with buttons)
However in 'Data Logger'....... 'Clear' there is a data file from the date concerned, marked 210207/223224.
Seems to me that the data is still there and I seem to remember having done this recovery in the past using 'Navilink'.

TRIMMER
QLD, 217 posts
18 Feb 2021 2:25PM
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Try reinstalling firmware if possible ?

sailquik
VIC, 6165 posts
18 Feb 2021 5:12PM
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Te Hau said..


decrepit said..
Yes, that jogs my memory as well I think it was with "navilink" but that maybe hard to come by now. I should have a copy somewhere, but where?




Navilink is still available to download via Locosys.
I just did so, still won't connect. (COM PORT error)
If anybody works it out can they give us the word.
I have a young fast guys (record) file, won't load onto card but the file is there in data logger.



Ahh, that jogs my memory as well. It might be the issue of finding the right COM port number. I think I had a trick for that using some other program but I will need to open some jammed files in my memory....... It could take a while!

decrepit
WA, 12761 posts
18 Feb 2021 4:54PM
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I'll get hardie's GT31s tomorrow and do some experimenting

Te Hau
493 posts
19 Feb 2021 9:58AM
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TRIMMER said..
Try reinstalling firmware if possible ?


Yep done that twice

Te Hau
493 posts
19 Feb 2021 9:59AM
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Select to expand quote
sailquik said..

Te Hau said..



decrepit said..
Yes, that jogs my memory as well I think it was with "navilink" but that maybe hard to come by now. I should have a copy somewhere, but where?





Navilink is still available to download via Locosys.
I just did so, still won't connect. (COM PORT error)
If anybody works it out can they give us the word.
I have a young fast guys (record) file, won't load onto card but the file is there in data logger.




Ahh, that jogs my memory as well. It might be the issue of finding the right COM port number. I think I had a trick for that using some other program but I will need to open some jammed files in my memory....... It could take a while!


That's cool, I'm a patient fella

YP1
SA, 136 posts
19 Feb 2021 2:47PM
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Don't you have to set the GT31 to Navi Link mode to use the cable

decrepit
WA, 12761 posts
19 Feb 2021 12:58PM
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That's possible Richard I'll find out later

Windxtasy
WA, 4017 posts
19 Feb 2021 1:59PM
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the toggle switch on my GT 31 has stopped working. everything else is good. Can that be fixed?

decrepit
WA, 12761 posts
19 Feb 2021 2:54PM
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Not sure Anita, but I have two here from Joe, with problems, we maybe able to do something with bits from them

decrepit
WA, 12761 posts
19 Feb 2021 3:27PM
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Select to expand quote
Te Hau said..>>>
I just did so, still won't connect. (COM PORT error)
If anybody works it out can they give us the word.
I have a young fast guys (record) file, won't load onto card but the file is there in data logger.


Did you install the driver? I just found the CD that came with it, but only has XP and Vista drivers, of course I'm emulating W7. I've just got Joe's two but neither are turning on or charging up. Guess they need new batteries.

decrepit
WA, 12761 posts
19 Feb 2021 3:33PM
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And found the manual'

"Basic Operation of Downloading or Uploading:
Make sure the driver of USB-to-Serial Comm Port has been
successfully installed on your PC/Notebook.
Connecting the USB data cable between the unit and your
PC/Notebook.
Power on the unit, and select the NAVI LINK page
Press in the TS, the unit will the
show the page illustrated as
Execute the utility, NAVILINK.exe
on your PC/Notebook.
You will see the page displayed on
the screen illustrated as
then select the items you want to download or upload.
When data transfer has been completed, press the
Power/ESC button to reset the unit.
Please refer to the following pages for the detail procedures
and formats."

FormulaNova
WA, 15084 posts
19 Feb 2021 4:27PM
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Select to expand quote
sailquik said..

Te Hau said..



decrepit said..
Yes, that jogs my memory as well I think it was with "navilink" but that maybe hard to come by now. I should have a copy somewhere, but where?





Navilink is still available to download via Locosys.
I just did so, still won't connect. (COM PORT error)
If anybody works it out can they give us the word.
I have a young fast guys (record) file, won't load onto card but the file is there in data logger.




Ahh, that jogs my memory as well. It might be the issue of finding the right COM port number. I think I had a trick for that using some other program but I will need to open some jammed files in my memory....... It could take a while!


Device manager should show a new comport show up, or arduino will show what com ports are available.

Te Hau
493 posts
20 Feb 2021 7:57AM
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Select to expand quote
decrepit said..
And found the manual'

"Basic Operation of Downloading or Uploading:
Make sure the driver of USB-to-Serial Comm Port has been
successfully installed on your PC/Notebook.
Connecting the USB data cable between the unit and your
PC/Notebook.
Power on the unit, and select the NAVI LINK page
Press in the TS, the unit will the
show the page illustrated as
Execute the utility, NAVILINK.exe
on your PC/Notebook.
You will see the page displayed on
the screen illustrated as
then select the items you want to download or upload.
When data transfer has been completed, press the
Power/ESC button to reset the unit.
Please refer to the following pages for the detail procedures
and formats."


Thanks for that Decrep. I reloaded usb driver and navi utility.
It sees the com ports and I can locate the correct port.
Still get the msg 'not in navilink mode or incorrect port'
Tried all ports but same msg.
I guess the next would be to reload the firmware on the GPS unit but I reckon that will wipe the data files?

decrepit
WA, 12761 posts
20 Feb 2021 8:01AM
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No guarantees, but I doubt it

decrepit
WA, 12761 posts
21 Feb 2021 12:13PM
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Windxtasy said..
the toggle switch on my GT 31 has stopped working. everything else is good. Can that be fixed?


I've just managed to get one of Joe's apart, (the micro philips heads are rusted and deep in the casing, I can't get a grip on them).
And replacing the joy stick, is probably beyond my skills. It's very fine soldering required, these old hands are getting a bit too shaky, but somebody more skilled at fine soldering could probably do it.



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"Fixing GT31's??" started by hardie