HI,
First time poster here. I've just purchased a used Carlinkit 2.0 clone (looks the same, comes in the same box, just without the Carlinkit branding) and it seems to work fine in my VW Golf (which is what the original owner used it in too) but it has the 30 second reboot issue in my wife's 2019 Mazda CX-5 with the older Connect interface, which is what I primarily bought it for.
According tot he web interface, it came with 2021.07.04.2222 firmware and I saw that the 2021.01.28 and 2021.03.06 firmwares were both reported to work with Mazdas that have the slightly older system.
I tried to roll back the firmware to 2020.11.10 rollbak image on the ludwig-v github page but it wouldn't work (no flashing LED) so I tried the 2020.08.04 rollback, which did work. However, after the rollback, the version on the web UI said 2020.11.10! I then flashed the 2021.03.06 firmare, which seemed to work but after the flash the UI reported version 2021.07.04 again. I rolled it back again and flashed the 02021.01.28 image and, again, the UI reported 2021.07.04.
Unfortunately, my wife is not at home so I can't check if the unit will now work in her car without the 30 second reboot but has anyone else seen this sort of behaviour?