Instruct: Classify the given Amazon review as either positive or negative.
Query: I am having the same "E3" problem

I've had this phone for about 3 years and the other day I decided to mount it on the wall to save some counter top space. Well, when I finished measuring and drilling the holes, I unplugged the unit to get it all mounted. Well, when I plugged it back in, the whole unit was blinking like the Las Vegas strip! I couldn't figure out why this was happening. I tried pressing every button, I even left it unplugged over night and in the morning, same thing. I looked on line at Panasonic's site to find the manual and I couldn't even located the product on their site. I've tried some of the suggestions on from this site and still no luck. Calling Panasonic this very momemt. Stay tuned...