This video covers how to update the firmware of your Bittboy and pocketgo! This same method works for the LDK, rs-97 and the rg300.
Good news is that the latest firmware improves the screen tearing issues by at least 80%. In the end of the video I did a fast comparison between the LDK, pocketgo (post fix) and the bittboy (pre fix), in slow-motion and the results are very pleasing!

Pocketgo : https://retromimi.com/collections/handhelds/products/pocketgo-retro-gaming-system?aff=85

Firmwares:
Pocketgo V1.3: https://mega.nz/#!YkhTjIpQ!DwrhnZImN7hpqXk1FKMXbYYyVwWN8AiOzAeFLex7f2Q

Bittboy V2 V2.5: https://mega.nz/#!IkoRHKKY!hCsSmSvLFArO59gU_5LeSz655xu-TJYBe0CDhvQu1_g

Bittboy V3: https://mega.nz/#!R04zGIZT!35PY35LDh-RvuIM-iJ16SeVEbs2AdnMoRk3-wXDIItQ

Bittboy V3.5: https://mega.nz/#!h0RVTABQ!SFPkogkERNX0w7yiYmkjfuOyPwLk2QheW-fvdA_fzpE

Tools you need to download:
7zip:
https://www.7-zip.org/download.html

Minitool partition wizard:
https://www.partitionwizard.com/download.html

win32diskimager:
https://sourceforge.net/projects/win32diskimager/

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