Open CPS sudo add-apt-repository ppa:hmatuschek/ppa sudo apt-get update sudo apt-get install qdmr https://github.com/hmatuschek/qdmr/releases/tag/v0.11.2 Radios do not allow factory reset. Needs Factory cps software setting changed MD380 Device locked on 150 and 450. Unlocked. 878 enable USB sudo nano /etc/udev/rules.d/99-qdmr.rules change ignore to 0 - Unclear why sudo udevadm control --reload-rules To reload rules Using QDMR UV878 Plus Loaded my 878 Code plug successfully UV878 II PLus Radio recognised, read failed. Firmware https://www.wouxun.us/category.php?category_id=83