Onda V812 Quad Core Tablet PC Android 4.2.2 V3.0 Firmware: 329M

V812 Quad Core V3.0 Firmware: (support V1, V2, V3, V4 Version)
http://pan.baidu.com/share/link?shareid=450135&uk=389436537

V812 Quad Core V3.0 Firmware: (support V5 Version)
http://pan.baidu.com/share/link?shareid=450319&uk=389436537