My Panasonic KX-TC2258 Cordless wih answering machine handset. I have been using for last 4 years ,voice is very good but handset LCD display is blank. When the handset is removed from the base unit, green colour display appears without any text.

I have changed to new battery. But the problem persists.

Is there any solution that I can do it myself without giving the set to Customer service.

Thanks in anticipation of valuable solutions.

Did you checked your initial settings ? It might be due to the contrast for LCD is set to low. Just a suggestion. If its totally blank, it might be due to some other reason.