it got worse i've enabled the R&D mode , flash both eMMC and the roots, the right and left side of the keyboard are blinking meanwhile, the middle of the keyboard isn't .! and after a while, the device is OFF. PS: the device turned on the moment i put the battery in.! even without pressing the "ON/OFF button" !! one more thing before shooting myself , how to flash with framebuffer kernel ?! thanks guys