Here is an Android 4.2.2 Jelly Bean rooted custom firmware for the FNF iFive 2S tablet based on official version 1.1.5

( ifive2S_FW_422_V1.1.5_201307231500.rar )

Build information:

Linux Kernel: Linux version 3.0.36+ (root@five-server2) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #13 SMP PREEMPT Tue Jul 23 11:40:47 CST 2013

Android build: IFive/rk30sdk/rk30sdk:4.2.2/JDQ39/eng.root.20130723.144716:eng/opinions-on-teclast-p90hdst-keys

Custom firmware features:

• root with latest SuperSU 1.51 (free version)
• removed most Chinese and unnecessary applications
• Google Play Store fixes so more applications are visible/compatible
• updated busybox v1.21.0.git (2012-11-29)
• Unix like init.d boot scripts support, more details on init.d scripts here
• Android 4.2 AOSP stock launcher from here
• increased space for applications (/data partition) to 4 GB

Download: kasty-fnf_ifive_2s-422-115-rooted4.zip

Use Rockchip Batch Tool version 1.7 to flash the firmware, don't flash using the "sdcard" method.

Please report any problem with this firmware, I can't verify this custom firmware works as I don't have an iFive 2S to test it.