A service was created to fix the issue, should be this added to official BPI-M7 image? sudo nano /etc/systemd/system/btattach.service sudo systemctl daemon-reload sudo systemctl enable btattach.service sudo systemctl status btattach.service sudo systemctl start btattach.service sudo systemctl status btattach.service cat /etc/systemd/system/btattach.service [Unit] Description=Bluetooth UART Attach Service After=network.target Before=bluetooth.service [Service] Type=simple ExecStartPre=/usr/sbin/modprobe bluetooth ExecStartPre=/usr/sbin/modprobe hci_uart ExecStart=/usr/bin/btattach -B /dev/ttyS6 -P bcm -S 115200 Restart=always [Install] WantedBy=multi-user.target

@SteeMan thank you for the help! Well it is what it is, will look for the possible alternatives.

Hi, can you confirm that the OLED is working connecting it to another device (raspberry, Arduino)? It should be properly powered, cables should be checked if ok. Also, check in the spec if pull-up resistors are needed. You can force a scan of all i2c addresses again like this: # Force scan all addresses for i in {0..127}; do sudo i2cget -y 1 $i 2>/dev/null && echo "Device found at: 0x$(printf '%02x' $i)" done

Getting video acceleration is realtively easy in bookworm, but making it work in Trixie would be newsworthy

Armbian does not support the s905x4