Do You have cordless phone (or tv remote) with few not working keys? or maybe You have buttons to press very hard to get them working? Let’s fix it now before You get crazy and smash your device :-).
In this example You need Alcohol (isopropyl) min 99,5% pure (to not leave any pollution after drying) DO NOT USE SALICYLIC ALCOHOL it will leave white “powder” – salycil!
Cotton pads
Pry tool and screwdriver
I have opened my phone and clean PCB contact’s witch alcohol, next i clean rubber (carbon) contacts pads.
After cleaning i put all back together.
As You can see all keys working perfect.
