According to your description, I suggest you refer to the following information:

1. A gray screen will appear when your laptop is turned on. If the background of the screen is bright, but the whole screen is gray, this situation may be caused by the failure of the screen or graphics card. I suggest you contact your local HP Gold Service Center for handling. The contact information of HP Gold Medal Service Center in Cixi City, Zhejiang Province is as follows:

Address: No.202 Dongshan Road, Cixi City

Tel: 0574-63 1 19236

2. If by gray screen you mean black screen, that is, the screen is not bright and seems to be dead, I will give you the following suggestions:

1. You can recall something that happened suddenly, such as whether you added new memory or made other hardware changes recently.

2. Please use the battery or power adapter alone to power the notebook to see if it can be turned on normally.

3. If you haven't done anything special, you can't start the machine by using the battery or the power adapter alone. I suggest you try to turn it off and let the machine stand. The method is as follows:

(1) Remove the power adapter, battery and other external devices, such as USB mouse.

(2) In the absence of power supply equipment, you press and hold the power-on key for about 1 minute;

(3) Then don't connect the power equipment, and let it stand for about 30 minutes;

(4) Don't plug in the battery after standing, just use an external power supply, connect the machine end of the power supply first, and then connect the socket to see if it can be turned on.

4. If none of the above methods can solve your problem, it is preliminarily judged that this situation may be caused by motherboard failure or poor cable contact. In order not to delay your use, please contact your local HP Gold Service Center for testing and handling.

I hope the above reply can help you.

If the above information can't solve your problem, you can log on to www.hp.com.cn/chat,, the online chat room of HP Network, and ask an online engineer to help you solve the problem further. More product information is available in www.hp.com.cn/800..