Download latest Android Jelly Bean 4.2.2 stock for QC802 Quad Core TV Stick from here, here or from here.
Archive： QC802 TF card upgrade firmware
Firmware image file: update.zip
Model： QC802 Quad Core TV Stick
Image file size: 226 MB
Platform: Rockchip RK3188t
Build number: rk31sdk-eng 4.2.2 JDQ39 eng.hotack.20130606.152321 test-keys
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 your circles on Google+. Watch our photo albums on Flickr. Subscribe now to our newsletter.