well, mine is working but right shift and ctrl isnt working, i cant uppercase my alphabets with shift (zbntyo) and only with caps. another thing is when i tried to press shift+spacebar, the spacebar doesnt work. i tried removing the ram cover but still didnt work. this problem occurs when i tried to change the ram from 8gb ddr4 2400mhz single channnel to 16gb ddr4 dual channel 2133mhz