More than likely you have a bad circuit board behind the LCD. The LCD is the display itself. I've seen where someone did a bad job of soldering job, (cold solder joint created by flow soldering), at the factory. It may have passed quality control initially but one good hard bump and the 'cold solder' joint that was created at the company just got 'born.' It happens. Most of the time it's not a problem, but you will run across this every now and then. It looks like you 'then.' If it's still in warranty, take it back and ask for an exchange. If it's just past warranty, take it back anyway! Usually sellers understand and won't have a problem with an exchange.
Understand...It's not a user fixable thing!
SOURCE: Cordless phone 25881
Sounds like a power problem.
This model of phone will work as a regular corded phone when no ac power is available.
IE the cordless function is only available when you have electricity.
- is the ac adapter plugged into a working outlet.
- is the ac adapter working.
- is the ac adapter pluged into the base.
hope this helps
SOURCE: my panasonic cordless phone goes blank when picked up
Sounds like the batteries in the handset have failed, they will display in the charger from mains power
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