First time this happened after a year of use, I lost 'P' and '0' among others, and I had to replace the keyboard. A year later on the new keyboard it happened again, but came back after two days. 3rd time was four months later, and I have lost '-', '=', '5', '6', delete, and others. I remapped these. Then again now I lost another bunch including '\', backspace, enter, and space.
The original keyboard is a backlit keyboard FRU 04Y2387, ID# 48L16M, Parts # 0C44952, Model # KM BL-105US . Replacement keyboard also backlit and exact replacement.
Short of replacing the keyboard, or resetting the keyboard connection and cleaning the contacts, (all tried) what is there to do?
Is this a contact problem or keyboard problem? Has happened with two different keyboards. Is this a common problem?
Any help will be of great assistance and will be greatly appreciated.
The salt theory is essentially verified.
I deep bathed the bad keyboard with the missing column of keys, with hot and cold water. After drying it out, I put it back in the laptop. Lo and behold, the missing keys which had never responded in any of my tens of attempts were now working. This is the first time that I was able to get a response from the missing keys (p [ ' ; / = -).
There were some new issues with the keyboard which I attribute that to washing the keyboard. So I will have to wait till it dries off completely, and test it again.
Apparently the impedences are so high in this keyboard that a trace of salt or some foreign material can short the lines.
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