here is the download address for Onda V975M V3 & V979M Amlogic M802 Tablet PC:
Password is geekbuying.com
How to confirm the version of your tablet?
Please check the back of your tablet serial number, the 9 and 10 numbers you can get your tablet version.
1, The operating system is upgraded to the Android4.4.2 version
2, Optimized ONDA desktop system
3, Optimized CPU performance
4, Optimized RAM
5, Optimized the power consumption
6, Optimized touch fluency,improve operating speed
7, Optimized multitasking capability
8, Add Google Cloud Print Function
Note: Android4.4 OS not supported Flash
Please confirm your tablet has power above 60% to prevent power shortage caused by a failed upgrade.
Please backup important data, prevent file loss.
After the little green robot disappeared, probably about 1-2 minutes to appear black updated interface, then please be patient, do not do other operations.
If the little green robot disappeared, brush machine interface does not appear any more, there may be TF card doesn’t read, please try to another TF card.
1 Download the firmware, extract the following five documents:
2 Prepare a TF card capacity 16GB or less, then take the TF card formatted to FAT32 format on your computer.
3 Please copy five files to the TF card.
4 Power off the tablet, insert TF card.
Note: Please don’t choose “fast boot next time” when you shutdown your tablet, or can not flash tablet.
5 Press and hold the volume + key, then press the power button until the tablet is displayed a small green robot on the screen, release the button, the tablet will be updated automatically.
6 When the tablet turn on automatically, the upgrade is complete.
shopping link for Onda V975m Amlogic M802 is:
Enjoy the firmware, any questions, feel free to ask!