N76 background of the keyboard light does not shine?

Just bought the N76, was found during the day when the only light in the background of the keyboard flip open when you light and then are generally not bright! It's always bright at night, not so bright unless the light is bright in the light of the following will happen in the end what is the situation?
The N76 has a friend help me to resolve it under, the better the more people say ah!
I still have 3 days would OZ to the period, if broken, I can only for the new machine, ha ha!

N76 features a sense of light, you sense that optical cover point, click on the keyboard light Ah Ha ha normal N76 There is a smart phone to determine the function of the strength of light when the light would not have sufficient time to open a light background for this reassure you saving it all right ah landlord of the N76 features a very powerful time to understand their own ah! ~ ~ You extra points if the friend said, he has a photographic original to judge whether or not to turn on the lights, this is their settings do not need to (bring their own functions – power), if your phone can, may be out The problem.