Can anyone help me please? Because after i upgrade my Kingcom Joypad C81 to ICS 4.0 Custom Rockchip 2918 Firmware, touchscreen now not working. Upgrade succesfully and no encountered error during upgrading process but after upgrade and then my Tablet retarted and open to new ICS 4.0 Firmware but the touchscreen isn't work. Can anyone help me? Also i need the Kingcom Joypad Firmware because i plan to return to original firmware [version 2.3]. Thanks in advanced!

Note:
1. I used "RKDeviceManage" version 1.3 and 1.4 but same problem encountered.
2. I used Firmware "update.img version E8_40.03.zip" from this site [http://www.monk3ybidzness.com/2012/0...ypad-c81.html], upgrade succesfully but the touchscreen isn't working.
3. I also used Firmware from this Site [https://helpdesk.tom-tec.eu/KB/a210/...droid-23.aspx], upgrade succesfully but still the touchscreen isn't working.