Download Android Jelly Bean 4 2 2 stock firmware for Playtab C89S tablet Download Android Jelly Bean 4.2.2 stock firmware for Playtab C89S tablet from here or here. Firmware details Archive: rk3026_4.2_c89s_hkc_playtab_1024x600_gc0329_gc2035_V015_ 20140910 Firmware image file name: update.img Platform: Rockchip RK3026 Archive size: 618 MB Boot version: 2.13 Firmware version: 4.2.02 Build number: rk3026-eng 4.2.2 JDQ39 eng.wangjunxu.20140731.200447 release-keys Model number: PLAYTAB SDK version: RK30_ANDROID4.2.2-SDK-v1.00.00 Caution: Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data. Don�t miss any of our future video tutorials, follow us on Youtube. Like us on Facebook. Add us in yo...