x553ma

My ASUS X553MA, when it boots, the yuhjnm keys do not work, eventually they may start to work. from research i've found that a hard reset may solve the problem, however the battery is non removable. i have modified the laptop and the serial number sticker is missing so i have no hope of it...

Anyone else have any touchpad issues with their x553ma Asus laptop? And how does the overall feel of the touchpad feel? With my laptop, the touchpad seems to have a slight delay with the cursor. The cursor will be a bit late when I control it from the touchpad. This makes things like scrolling...