I've been using my FR 55 for three months. After the firmware version update to 11.01, its GPS stopped working completely and now there's an infinite loop update that doesn't work.
Reading some questions in this forum, I saw several recommendations and tried all of them but unfortunately, none worked. However, when accessing Systems/About, I see that the GPS version is 0.00.
So, I decided to troubleshoot my device to, at least, understand what was happening. I connected my watch to my computer using the Mass Storage option to browse the existing files under the Garmin directory. Opened the GarminDevice.xml file and found this excerpt:
<UpdateFile>
<PartNumber>006-B4058-09</PartNumber>
<Version>
<Major>0</Major>
<Minor>01</Minor>
</Version>
<Path>Garmin/RemoteSW</Path>
<FileName>gup4058.gcd</FileName>
</UpdateFile>
Then, I converted the Device.fit file to CSV, using one of the SDK tools, and found this specific line:
Data,2,software,part_number,"006-B4058-09",,version,"0.0",,,,,,,,,,,,,,,,,
So, the PartNumber maches. After that, I opened the gup4058.gcd file, under the Garmin/RemoteSW directory. This is a binary file but it's possible to open it using a decent code editor. Taking a look at this file, I saw it's responsible for the GPS updates on the device. If I try to delete this file and sync my device using Garmin Express, it downloads the file again with the same content, even restarting it.
Therefore, I believe that the firmware version 11.01 contains a specific error related to this GPS file because it does not make sense to update something to the 0.00 version.
I already contacted Garmin Support and shared some videos explaining what's happening. They offered to replace my device but this is not an option (more plastic, costs with transportation, taxes, etc). I think an update to the version after 11.01 (11.03?) released by the Garmin team fixing this minor bug could solve this issue for me and other customers. If you need someone to test the fix, please let me know.
