Boss2 dac driver available on rpi 5.4.77 kernel onwards Boss2 I2S Dac Works on RPI3 / RPI4 boards, PCM 44.1k to 192k , DoP64 Initial working Images available here. Dietpi - 2.632.2 - kernel 5.4.79 Moode - v7.00 - kernel 5.4.77 volumio - 2.853 - kernel 4.19.118 rpi3(-v7+) and rpi4(-v7l+) , dtd 2020-12-31 with rtl8812au driver change. OLED displays required to install additional python applications. refer below doc for installation steps. http://3.230.113.73:9011/Allocom/Boss2/Boss2_oled_install_steps “”While the WIFI of RPI4 is better than previous models , its still not great . We highly recommend adding WIFI dongles. In our tests , RPI4 + Boss2 on acrylic can reliably play hi resolution files with a standard WIFI access point no more than 9 to 10m away . Boss2 and RPI4 on ALU case plays reliably at around 5.5m or less. Using WIFI dongles will increase substantially the range . (we are able to reach even 20m through one wall )”” Most of the RPI player OS rtl8812au driver present , otherwise need to install the driver manually. 1) RTL8812AU wifi driver : insert USB WiFI module/Dongle before power ON. https://allo.com/sparky/dual-band-usb-3-0-wifi-dongle.html thanks to https://www.raspberrypi.org/forums/viewtopic.php?t=194859 ssh or terminal login using OS credentials sudo wget http://3.230.113.73:9011/Allocom/USBridgeSig/install-wifi -O /usr/bin/install-wifi sudo chmod +x /usr/bin/install-wifi sudo install-wifi Note : If the above steps didn't got correct driver refer http://3.230.113.73:9011/Allocom/Boss2/rtl88x2/info 2) RTL8192EU wifi Driver By default available RPI OS , some of the OS its blacklisted. https://allo.com/sparky/usb-wifi-dongle.html some of the OS rtl8xxxu blacklisted , need to edit the file (# add the line starting)using nano editor. /etc/modprobe.d/blacklist-rtl8xxxu.conf to blacklist blacklist rtl8xxxu remove the blacklisting #blacklist rtl8xxxu ******************************* boss2_oled.tar.gz - last changes done on 19april2021 for ropieee install correction. can refer on https://github.com/allocom/allo-boss2-oled contact for help : support@allo.com