It could be a hardware issue. But it might be fixable. Use a Torx T6 I think to open up the unit. There are 2 screws in the battery compartment and I think 2 under the label. You can then reseat the ribbon cables to the screen. That might fix it.

If you don't get this fixed, please drop me a note to my email addy on my profile. Here's hoping you are in the US. :-)