GPSrChive Discussion Forum

Hi,

I had an updated Gpsmap 66s wit FW 4.20 running for some weeks.
The devices powered down yesterday, after the batteries ran out of power.
I removed the batteries an next day I inserted new one.

After powering on I recognised no GPS Fix.
I had a look after the firmware version in the test and info screen and see
Software Version 4.20, GPS Version 0.0
For me , it looks like that the firmware for the gps chipset is gone.

I tried a complete reset with and without removing batteries, no change.
In the Moment the Garmin backbone is down, which means Garmin connect does not work for update an Registration services.

Tomorrow I may start my bike vacation without a GPS, I think...

I tried to flash the gpschip firmware as described in the howto section, but it seems that the firmware is not picked up. Is the syntax correct ?

[Gps]\Garmin\RemoteSW\chipset.gcd

Maybe the name for the firmware has to be different !

Help is very appreciated

Best regards
Frank

Hi all,
Not sure if it is important or not.
Maybe it is a hint for a hardware failure.

The test page (enter + power button) says :
GPS Version : 0. I am not sure if this is a hardware or software version.

The Info screen says:
GPS Software Version : 0.00 I think this is the Chipset Firmware

I am not sure what GPS Version means.

Best regards
Frank

fulbrich wrote: Thu Jul 23, 2020 6:59 pm Hi,

I tried to flash the gpschip firmware as described in the howto section, but it seems that the firmware is not picked up. Is the syntax correct ?

[Gps]\Garmin\RemoteSW\chipset.gcd

Maybe the name for the firmware has to be different !

Help is very appreciated

Best regards
Frank

That is not correct.

Please see the GPSMAP 66 Firmware page for correct instructions.

fulbrich wrote: Thu Jul 23, 2020 7:48 pm Hi all,
Not sure if it is important or not.
Maybe it is a hint for a hardware failure.

The test page (enter + power button) says :
GPS Version : 0. I am not sure if this is a hardware or software version.

The Info screen says:
GPS Software Version : 0.00 I think this is the Chipset Firmware

I am not sure what GPS Version means.

Best regards
Frank

"Software Version" is the device firmware version.

"GPS Software Version" is the GPS chipset version.

You need to re-flash the GPS Chipset.

See the GPSMAP 66 Firmware page for detailed instructions.

If not successful, your device may have a hardware fault that requires replacement.

Download, unzip and replace [GPSMAP 66]\Garmin\RemoteSW\006B331300.gcd with the desired chipset software version

Good morning,
I downloaded GPS Software Version 2.8, created the Subfolder, copied the file an renamed it to 006B331300.gcd

After powering on the gpsmap starts and recognises a firmware update.

It stops in a loop by telling me „Updating GPS Firmware 1%“

I guess I have to return my GPS after 6 month in use.

Thanks for you help.
Frank

Unfortunately the same with GPS Software file 2.7

Hello,
Had the same problem.
Resolved it. See :
https://www.gpsrchive.com/Discussion/vi ... f=36&t=718
Hope it helps

Hello DDM,

thanks for your answer to by problem.
To be honest, I am afraid to destroy mandatory files which are neccessary for the operation system of the device.

I did a factory reset and deleted all custom file like my maps.

The current.gpx is now renamed to org_current.gpx ... but unfortunately it does not help in my problem.
Did you rename more files ? Maybe you can remember what to rename else.

Best regards
Frank

When I came back from my vacation I recognised that the Garmin Cloud is back.
I connected my Garmin with Garmin Express, which offers Some updates for Timezone and translations. After updating I get my GPS fix and the GPS Modul Software is recognised.

After digging the Garmin Express logfiles I found that a gupdate file had been transferred without announcements in the Garmin Express GUI.

Well it works in the moment.