Sorry to revive a dead thread, but I have finally got the Carlinkit 2.0 working reliably to provide Wireless Carplay on both my 2020 Passport and my wife's 2017 CR-V. Carplay boots about 10 seconds after starting the car, connects to my iphone 12, and I can leave the phone in my pocket or charge it on the wireless charger while driving. All carplay functions including apple and google maps, phone, and text messaging, etc. work normally. I thought someone might find this information useful.
The Carlinkit has always worked in my wife's CR-V since purchasing it, but I have never been able to get the head unit in the Passport to recognize it and boot properly until now. In order to get it working, I used the CR-V head unit to upgrade the Carlinkit 2.0 to the latest available over the air 2021.03.06 firmware upgrade (by connecting it to the CR-V, allowing it to boot to Carplay, and then connecting to the internal website on the carlinkit at 192.168.50.2 with my phone and following the OTA upgrade instructions on the web page). After successfully upgrading the firmware to 03.06 and testing it on the CR-V, I then used a usb stick and powered hub to manually upgrade to the 2021.04.26 version from here:
Index of /U2W/2021-04-26
After uprading to the 04.26 firmware, I plugged the Carlinkit into my Passport Head Unit, started the car and watched it power up, enabled the carplay adapter it recognized, and connected to it via bluetooth from my phone and voila! Wireless Carplay is great! I now have two Carlinkit units, one in the CR-V and one in the Passport, both running 04.26 firmware. My wife never has to remove her iphone from her purse or mine from my pocket, unless we want to charge on our wireless chargers. No more lightning cables and no more wear and tear on the ports on our phones. As the 04.26 firmware seems to be working on both vehicles just fine, I don't intend to upgrade again unless I find a specific problem reported fixed on the macrumors forum for the Carplay adapters:
CarPlay adapter to convert to wireless CarPlay?