Download Android Jelly Bean 4.2.2 stock firmware for Ippli Mars I2 TV Stick from here or here. Download another Ippli firmware from here.
Archive name: X32_RK3188_IPPLI_V422_130822
Image file: update.img
Archive file size: 212 MB
Firmware: Android Jelly Bean 4.2.2 stock firmware
Model: Ippli Mars I2 TV Stick
Platform: Rockchip RK3188
Boot version: 1.20
FW version: 4.2.02