How to install the TNT R5 firmware relse on Pipo S1 tablet

First you have to install The Rockusb Driver v2.0, according to this tutorial. Then you must to download the Pipo Smart S1 TNT Relse 5 Firmware from here or from here. Next download the Rockchip Batch Tool v1.5 from here.
Now put the Pipo S1 tablet into 'firmware update mode' (pressing in the same time the Volume Down button + a thin pin into reset hole), run the Rockchip Batch Tool v1.5, select the pipo_s1_TNT_R5.img file and press 'Restore' button. Wait for 4-5 minutes and that's it. After reboot you'll get "corrupt sd-card" problem or the internal SD is not mounted, but a quick format will fix that.

Enjoy the new firmware from www.topnotchtablets.com!

Pipo Smart S1 TNT Relse 5 changelog - Fixed Build.prop for better market access (GT-i9300)
- Added ClockWork Mod Recovery
- Fixed framework.jar
- Rooted
- Based on newer stock rom (2012.12.24) (Chinese Firmware)
- App partition is Larger
- Added Permission Files for improved market
- Removed Chinese Apps
- Framework.jar mod for better gameloft compatibility (Asphalt 7 now works)
- Added, Wther Widget, superSu, gallery with picasa support, ESfile Explorer, english dictionary fix
- Simplified and pretty boot animation
- Changed Annoying board -press sounds... now they are less annoying
- Default Background should be changed