DwarfDecker

Update of firmware package fixe the issue. Thanks dmesg log is OK iwlist show expectd API list [ 10.549012] xradio: XR819 device discovered [ 10.649993] cfg80211: failed to load regulatory.db [ 10.772539] xradio: hardware vers. 7.9 [ 10.772557] xradio: firmware vers. 8 (WSM), build 43, api 1060, cap 0x0003 [ 10.772560] xradio: Config USE_EXTENSIONS [ 10.781416] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'

Thanks I did tried few week ago to install firmware inaries manually but loading failed at 2nn ou 3rd step I'll try the updated frimware package from repos and add comment to thhis post ( either to tell taht it has been fixed , or to add new data about the issue ) Note: I may get more time to dig in due to confinement

Issue is present in both Focal and Buster, wlan0 work with downloader image and become faulty after applying recent update ( probably new kernel) I've found that Wifi driver fail to start due to missing chipset firmware binaries in /lib/firmware/xr819 dmesg trace [ 70.648156] xradio ERR: FWIO: can't load sdd file xr819/sdd_xr819.bin. [ 70.648185] xradio ERR: BH: bh thread exiting However downloading firmware from https://github.com/armbian/firmware/tree/master/xr819 doesn't fix the issue, it seem that something is broken into kernel ( kernal side wifi driver of fwio loader? I don't know it yet) Board info : ___ ____ _ _____ / _ \| _ \(_) |__ /___ _ __ ___ | | | | |_) | | / // _ \ '__/ _ \ | |_| | __/| | / /| __/ | | (_) | \___/|_| |_| /____\___|_| \___/ Welcome to Armbian 20.08.16 Buster with Linux 5.8.16-sunxi System load: 2% Up time: 30 min Memory usage: 15% of 491M IP: 192.168.1.253 CPU temp: 10°C Usage of /: 2% of 58G [ General system configuration (beta): armbian-config ]