acer aspire v5 573g having shift key problem after insyalling bios v2.30

gputhread
gputhread Member Posts: 4 New User

i have acer aspire v5 573g i7 8gb ram and 4gb nvidia 750m with windows 10 pro
i have upgraded bios to v2.30,

moat of times i cannot able to press @ by using any shift key,shift doesn't works sometimes