A few years ago, my wife and I purchased a set of wireless phones for our landline at home. They were the motorola MD400 series phones. At first everything was perfect, the phones had excellent reception and sound quality. No problem with batteries. Just Perfect.
Sadly, that didn't last very long. Over time and one-by-one all the phones developed a weird problem. The uppermost keys became difficult to activate. We had to press down long and hard to enter a "1", for example. Eventually we reached the end our patience with this and decided to do something. A google search yielded a nice discussion on amazon.com on how Motorola had recognized this as a problem and was providing problem-free replacement units free of charge. I called Motorola customer service and told them that 3 of 4 phones were having this problem. They sent 3 replacements and we were very happy.
... until 1 year later when the 4th phone started to have this problem! Unfortunately, this time the exchange program was no longer offered by Motorola. Again, google yielded an answer from some a nice person on amazon.com.
The choice was to either give up on the 4th phone, or follow the instructions to repair the problem. What I've done below is to outline the steps I took to clean the handset keypad contacts. It follows Kamoske's steps from his amazon posting to the letter. Maybe if anyone else has the same problem they can find some help from these directions.
So here's what I did:
- Open battery compartment, remove battery. Also remove belt clip on back of phone. You might have to pry it a little.
- Pop off the access panel on upper back of phone. This panel merely hides two screws.
- Unscrew all visible screws, Separate front and back of phone. You might have to wiggle the pieces relative to each other. The rubber strips on the sides are held in place with dovetail grooves.
- The phone should come apart in three sections.
- At this point, get some cotton swabs and alcohol. Dip a swab in the alcohol and rub down the contacts on the keypad and little black pads underneath each button on the rubber membrane.
- Let it dry and re-assemble. Your phone should now work properly.