Here is an Android 4.2.2 Jelly Bean rooted firmware for the Rikomagic RKM MK802IV MiniPC based on latest Rikomagic test release from 2013/11/07. This firmware is designed for MK802IV models with serial number 201307**** or later equipped with a Broadcom AP6210 wireless chip.

(IV-AP131107.zip   / RKM MK802IV AP6210_20131107_1080P.img)

MK802IV FW(131107):S/N from 201307**** till now

Build information:

Kernel: Linux version 3.0.36+ (ant@adminroot-X9DRL-3F-iF) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #569 SMP PREEMPT Thu Nov 7 09:11:34 CST 2013

Android 4.2.2 JB: RKM MK802IV-eng 4.2.2 JDQ39 eng.ant.20131107.101025 test-keys

ro.rksdk.version=RK30_ANDROID4.2.2-SDK-v1.00.00

Custom firmware features:

• root with latest SuperSU version 1.65 (free version)
• removed most Chinese and unnecessary applications
• Google Play Store fixes so more application 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
• changed permissions on external sdcard to allow write access
• increased space for applications (/data partition) to 3 GB
• NEW! kernel modules (cifs, tun, lan, serial, xpad) compiled by Oma & Crew RKTablets, thank guys!
• optional ClockworkMod (CWM) Recovery easy install package

Download: kasty-rkm_mk802iv_ap6210-422-20131107_rooted3.zip

Please flash with Rockchip Batch Tool 1.6, use Restore button.

Please report any problem with this firmware, I can't verify this custom firmware works as I don't have a MK802IV device to test the custom firmware.