vichaos

For 2.4Ghz the bandwidth is locked to 20MHz only adjusting the wireless router doesn't effect anything at all the bandwidth is always 145Mbps. For 5.0GHz I'm able to connect to all the bandwidth 20/40/80MHz only 80MHz is seem to cause many issues such as kernel panic at boot/restart and system sometime freeze. But I just try limiting the throughput(from 867Mbps to 780Mbps) while staying at Bandwidth 80MHz seem to work flawlessly. But I think I prefer to stay with 5GHz 40MHz to avoid random kernel panic on start/reboot/shutdown. Without brcmfx-driver=1 I always get kernel panic one time before booted up and the machine, sometime turn on itself after shutdown.

For wifi I accidentally able to get full speed (80MHz ~ 867Mbps) when booting via the clover from https://github.com/the-darkvoid/XPS9360-macOS/commit/c7149ab350682310bf2c091bc0a082cc8f9b66b8.(I was using this repo until my DW1520 break). I'm able to boot by just having brcmfx-driver=1 and added pci14e4,4353 device properties. After boot up I saw that wifi interface was using AirPortBrcmNIC.kext instead of AirPortBrcm4360.kext and I'm able to get full wifi speed, but the system was getting freeze and hang very often especially when it's consuming high bandwidth 700-800Mbps for long periods. Do you guys have any suggestion? b/w I'm back to 40MHz for now because it's very stable and 300Mbps is not bad at all.

Yes, both bluetooth and wifi working perfectly after sleep&wake .

After struggling with bluetooth range and bandwidth i think this bluetooth version work best on my XPS9360. I put attached kexts in /L/E, AirportBrcmFixup.kext in clover and added brcmfx-driver=1 brcmfx-country=TH in clover boot arguments. BrcmBluetoothInjector.kext.zip BrcmFirmwareData.kext.zip BrcmPatchRAM2.kext.zip

i think this methods will be working if the card is still healthy. I bought 2 cards last week and I have been using one of them since then. Each time i boot up my XPS it was able to last for 10-30mins before making my XPS freezed and I had to force reboot many times until I found this thread. At first i was trying to mod the currently using one but it seems like the wifi interface can't be detected at all only Bluetooth was working and I gave up. However, a few hours later I grap a new card and doing exactly the samethings and surprisingly, it's working, no more disconnect, freeze, or kernel panic at all. p.s. both of them are CN-08PKF4 Thanks for sharing you have made my day