[alexvideogames]

Please help,I dont understand how upgrade mp4 with anyka3221

I have working mp 4 player, like ipod classic with 2 mp kamera, but player after few minutes freeze, processor anyka3221

i dont understand how make backup, and how reflash it

programms s1 not working with it, i think so.
What programms i need to use?

Please give me step to step instruction