Latest Uhappy UP350 user agents:

User Agent	Browser	Platform
Mozilla/5.0 (Linux; Android 6.0; UP350 Build/F200C_JBT_A2.37M0.MUL.P1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/58.0.3029.83 Mobile Safari/537.36	Chrome Webview 58	Android 6