I've been following this thread for a while now, but felt it's about time to get involved. I have a 2020 Hyundai Palisade, with a Carlinkit, running the 2020.06.17.0549 firmware. It mostly works, but with some annoying intermittent problems that make it score poorly with me, and (more importantly) my Wife.
1. We share the car, and both use it with our own phones. Selecting which phone to connect is hit and miss. If only one phone is in the car, it'll usually connect successfully. If both phones are in the car, the "select phone after connection" button seems to do nothing. It'd be great if we could reliably choose the correct phone at startup.
2. Occasionally while driving the HUD screen will go black. Audio continues playing, but nothing appears on screen. When this happens, often the iPhone also displays a black screen. Sometimes triggering Siri brings things back to life, but after "recovering", both iPhone and CarPlay UI can be very sluggish, as if something is using all the phone's CPU time.
3. Sometimes connection doesn't seem to work first time, prompting the device to reconnect. Sometimes reconnect fails. If I'm driving by this point (usually 30 seconds or so after starting the car), I have to pull over to fix it.
4. Occasionally the Navigation prompt / Siri voice audio will stutter. Music seems unaffected. It's a minor issue for me.
5. The start up display on my wide-screen HUD really bugs me. The "Connecting" font is too big, and is slightly cropped. It seems like the display could look a lot more professional. Also the on-screen buttons during the connection process (language, cancel, select phone) are really unresponsive. This display looks way less slick than CarPlay, or the Hyundai OSD.
6. After stopping the car for a while, (e.g. fill up with Petrol, or pop into a shop) the device will usually reconnect instantly (which is great). Sometimes however it won't reconnect at all, and I'll be forced to physically reconnect the device.
These issues are minor by comparison to other users (Sounds like Mazdas are totally broken, and GMC's have bad audio after 5 minutes), but it's still not good enough. I'm curious as to whether it might be possible modify the software and manually tweak some settings. It'd be great if the software could be open-sourced - unlikely, of course...
I tried a port scan, but only http (port 80) seems to be open. After poking around the browser, I found how to get a dump of the log file, which contains lots of interesting information. If you're interested, you can access the log file by connecting a laptop to the Carlinkit wifi, and accessing the following url:
On my Mac, I used curl to dump it out to a text file (my browser lost all the new line info!).
curl
http://192.168.50.2/cgi-bin/server.cgi?cmd=upload_log > ~/carlinkit.log
Has anyone tried modifying the software?