Bluetooth is not working on X96MaxPlus_2101

[drafort]

Model: X96MaxPlus_2101
WiFi & Bluetooth chip: FN-LINK 6222B (rtl88x2cs)

Armbian: Armbian 23.02.0-trunk Jammy with Linux 6.1.12-flippy-82+
Booting from sdcard
Bluetooth already installed from armbian-config, but no Bluetooth devices found, however, on installed ("from the box") at emmc Android 9, Bluetooth working perfectly.

[ophub]

/boot/uEnv.txt
change dtb: meson-sm1-x96-max-plus.dtb

https://github.com/unifreq/linux-5.15.y/blob/main/arch/arm64/boot/dts/amlogic/meson-sm1-x96-max-plus.dts#L185-L197

[drafort]

/boot/uEnv.txt change dtb: meson-sm1-x96-max-plus.dtb

https://github.com/unifreq/linux-5.15.y/blob/main/arch/arm64/boot/dts/amlogic/meson-sm1-x96-max-plus.dts#L185-L197

Thank you to reply!
Dtb changed as pointed.
Still no Bluetooth devices available

[ophub]

armbian-config > Network > Install Bluetooth Support

[drafort]

Or it's important to change Linux kernel to 5.15 from 6.1? And to use Jammy 5.15.94?

[ophub]

https://github.com/ophub/kernel/tree/main/pub/stable

This dtb is available in four series (5.4/5.10/5.15/6.1) kernels. You can switch freely

armbian-update -k 5.x.y

[drafort]

armbian-config > Network > Install Bluetooth Support

already been installed
no devices found

[ophub]

Update other series of kernels to see which can drive

[drafort]

Update other series of kernels to see which can drive

Thanks!
I'm trying now and will give feedback here

[drafort]

Update other series of kernels to see which can drive

Kernel was updated to 5.15.94 using armbian-update -k
Still no Bluetooth devices found.
Bluetooth support is installed from armbian-config.

[drafort]

Kernel downgraded to 5.10.168
But still no Bluetooth devices found

[drafort]

Kernel was downgraded to 5.4.231
But result is the same: no Bluetooth devices found. What to do?

[drafort]

upd:
Tried to use Debian bullseye 5.15.94 instead Ubuntu (usb flash drive and sd card)
System is not booting up with dtb "meson .... max_plus" and "meson .... max_plus_100".
Successfully started with "meson .... x96_air_1000", but still no Bluetooth devices found (Bluetooth support was installed from debian-config).
May be problem is in dtb?

[ophub]

unifreq/linux-5.15.y@d1a5aff

This driver is added by a third party, some people can use it, some people can't, it's unstable.
Give up if the test fails, there is no other way at present.

[drafort]

Found this:
https://forum.armbian.com/topic/25334-need-correct-dtb-for-rtl8822cs/
May be helpful

[salsabilng]

I have same tv box, im able to edit the dtb to activate the bluetooth. currently using 6.1.12 kernel

here is my dtb, extract, then replace meson-sm1-x96-max-plus.dtb in /boot/dtb/amlogic
dont know yet if it's stable or not, but it works on me

meson-sm1-x96-max-plus.zip