HP Pavilion dv4-1502TU notebook keyboard not working properly. The system is running Windows 7 Home edition. While some of the keys like Caps Lock, Esc, Function keys etc seem to write fine, the alphanumeric keys do not seem to work. They seem mapped to some other keys, when I try. However, when I open the on-screen keyboard, I am able to type properly using the laptop keyboard. Once I close it, the keyboard doesnt seem to work again.
Thanks for taking the time to respond to my query. Unfortunately, I do not think the issue is either with the NumLok or using a different language keyboard. I had checked both these possibilities earlier itself. As regards the BIOS changes, I am not quite comfortable doing that unless I have some sort of help to do that. Thanks again for taking the time to respond to my query.
The issue I am facing is that some of the keys seem to work, but most of them do not (some appear mapped to wierd characters, while others just do not do anything). However, when I use the on-screen keyboard everything works well. I even tried an external USB keyboard, but the result was the same as my notebook keyboard.