Latest Allview A4 You user agents:

User Agent	Browser	Platform
Mozilla/5.0 (Linux; U; Android 4.2.2; ro-ro; A4You Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30	Android Browser	Android 4
Mozilla/5.0 (Linux; U; Android 4.2.2; pt-pt; A4You Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30	Android Browser	Android 4
Mozilla/5.0 (Linux; Android 4.4.2; A4You Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36	Chrome Webview 30	Android 4