Latest ONYX BOOX Monte Cristo 4 user agents:

User Agent	Browser	Platform
Mozilla/5.0 (Linux; Android 4.4.4; MC_Cristo4 Build/2021-08-02_13-23_2.1.2_afbb661) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/33.0.0.0 Mobile Safari/537.36	Chrome Webview 33	Android 4