Bootcardmaker stuck m8s pro L

[steeltape]

Since yesterday my box stuck at mecool logo and so I use bootcardmaker .

After a seems successful flash it reboot but still stuck at boot logo.

So I try to flash again with bootcardmaker but when load bootcardmaker it come out android logo with an X instead of flashing.

Anyone can explain to me how can i fix this problem so that it flash again. I tried making new sd card with difference fw with bootcardmaker and all same, android logo with an X

[Snuman]

I having same problem basically just received box from GearBest... used 2 days M8S Pro L with voice control ..on restart now stuck on color balls Antimated loop...
of course no reset button , so has be taken apart to short pins.. any suggestions accepted.. very Frustrated

[steeltape]

Return it if you can but if not then follow this