M8S s812 bricked

[bellad]

hello,
i open new post for explain my way,
1°) my box sound crash after ~ 20mn with any movies
2°) i try change firmware with sdcard
i put , with bootcardmaker , the u-boot.bin of bootcardmaker directory
i put files in the sdcard :
aml_autoscript
factory_update_param.aml
n200-ota-20151103.zip
recovery.img
u-boot.bin
after put the sdcard in my box , push the reset button and power
the led red pass blue ( nothing at the screen )

i'have try more firmware , always the same (black screen)

3°) i try with usb burning tool

he detect my box
start
100% success
reboot
black screen
grrrr..

i try with short pin nand 5-6 or other found on the internet

black screen

i am lost

can you help please

[bellad]

ok i debricked with usb tool and M8S_20151124 firmware , but I returned at the beginning , " 1°) my box sound crash after ~ 20mn with any movies"

[JustMe]

sound like more kodi issue

[bellad]

i no understand !! , can you precise