ScoreABSM

Context: new Banana Pi M4 zero (rev 2) is using Wifi/BT over SDIO, which requires an sdio overlay. Thanks to Armbian team for providing it. Editing armbianEnv.txt to add "overlays=bananapi-m4-sdio-wifi-bt" did the trick for Wifi but BT is still not available (neither in standard or rolling builds)... @c0rnelius I know you tried to figure out why, I'm missing technical knowledge to help... Digging the Internet I saw similar bluetooth issue for radxa zero 3w with aic8800, resolved using hciattach / hci up, but needing an available /dev/ttyS1 (UART1) we are missing here... Do you know why? Could it be the problem for banana pi m4 zero and if yes could an overlay activate it? Denis

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Hi, Great work thanks! Why no 25.05 for banana pi M4 zero? Perhaps are you waiting for some additional work on missing bluetooth support for rev2? @c0rnelius ? Denis

👍 Thanks!

Trying to update Armbian_community_25.8.0-trunk.38_Radxa-zero3_bookworm_vendor_6.1.115_minimal got a problem with beta.armbian.com's certificate: Err :6 https://beta.armbian.com bookworm InRelease Certificate verification failed: The certificate is NOT trusted. The certificate chain uses expired certificate. Content of /etc/apt/sources.list.d/armbian.sources Types: deb URIs: https://beta.armbian.com Suites: bookworm Components: main bookworm-utils bookworm-desktop Signed-By: /usr/share/keyrings/armbian.gpg Something to do on my side? Denis

@ZjemCiKolege than you! Now wireless is activated by the overlay. @c0rnelius wifi ok but I'm still missing bluetooth (pb with the controller). See dmseg attached. dmseg-H-wifi-bt.txt

@c0rnelius here you are. Denis dmseg-H.txt

@c0rnelius new test with latest debian rolling (25.8.0-trunk.5_Bananapim4zero_trixie_current_6.12.23_minimal): - HDMI audio and GPU ok 👍 - no wireless Again my question about overlays: do I need another overlay for wireless? The one I used for standard builds (sun50i-h616-bananapi-m4-sdio-wifi-bt) is not working... Thanks for your help. Denis

Many thanks @c0rnelius but I need clarifications. I agree that for standard build, using overlays (bananapi-m4-sdio-wifi-bt and sun50i-h616-gpu build), wifi (with or without antenna) and GPU are ok, but it is not true for rolling release 570 suggested by @going , and I never got HDMI sound (no sound cards each time). Are you refering to another recent build? If HDMI sound is also available it’s great! And what about bluetooth? When you write wireless do you include bluetooth? Denis

Thanks for replying c0rnelius, going, sorry for the delay. Testing 507 (2 Bananapi M4 Zero images available, minimal Trixie and minimal Plucky) I got same result: - no wifi adapter found - adding an ethernet usb I was able to activate network/ssh install/upgrade from another computer - no HDMI sound (no sound cards found) - no bluetooth adapter - no GPU - no change with overlays available (sun50i-h616-bananapi-m4-sdio-wifi-bt, sun50i-h616-gpu) Do you know about other overlays available elsewhere? Thanks Denis - -

I really like this small board but with new revision firmware choice is a nightmare... Looking for Debian or Ubuntu with XFCE and support for wifi (usb eth at start if needed ok), bluetooth, HDMI sound, QHD display resolution (2560x1440) Main tests results: - Standard Armbian (V25.2.2 Linux 6.6.75 Ubuntu noble XFCE + overlays=bananapi-m4-sdio-wifi-bt) -> wifi OK, bluetooth NO, HDMI sound NO, bad display perf, buggy screen size (display 1920 when choosing 2560) - Official BPI (V24.8.2 Linux 5.4.125 Debian XFCE + overlays=i2c0 spi1 uart4 -> wifi OK, Bluetooth NO, HDMI sound NO, bug in screen size (limited to 1920) - Other rolling releases, starting from minimal, ...: not better ou worse. Any build you know with better results? Please help.