If DJI GO is not connected to the drone, then it’s not going to create a TXT flight log on your mobile device. The DJI Goggles also create a TXT flight log. While those logs can be retrieved via an FTP client like this, I don’t know how to read them since the format of the TXT file is not the same as the TXT file created by DJI GO. Currently, it seems the only option is to sync the DJI Goggles logs using the DJI Assistant 2 application and let DJI support analyze the logs (which wouldn’t be timely enough in this case).
No. That feature can only be used from DJI GO and it will only able to show data from the most recent TXT flight log on your mobile device. I tried copying one of my DJI Goggles TXT files to my mobile device, but it did not show up in DJI GO. So, attempting to view the DJI Goggles flight logs within DJI GO is not an option either.
Right, that’ll still work (even if the DJI Goggles disconnect from the drone). The drone uses GPS data from its internal GPS receiver to navigate back to the last marked home point.
The most common way to do this is by connecting the DJI Goggles to the HDMI output on a tablet. The problem is that most of the tablets that work well with DJI GO do not have an HDMI output. The Nvidia Shield K1 has an HDMI output and is powerful enough to run DJI GO. However, Nvidia no longer manufacturers it, so they are hard to find at a good price.
https://www.amazon.com/exec/obidos/ASIN/B0171BS9CG
If it’s an option, OcuSync is the best and most convenient way to connect the DJI Goggles. When connected via OcuSync, the DJI Goggles wirelessly connect directly to the drone. That means you can continue to run DJI GO on your mobile device per the usual.