Find a way to repair my old Pro1 keyboard

[raymo 183]

Hi everyone
I think I found a trick to repair my old pro1 keyboard.

Facts :
-some models have keyboard problems since beginning
-some users reported some problems after a few years of use
-problems listed are everytime the same : some ghosting touch (example : you type 'a' and nothing appears, or a triple 'a' suddenly pop...
-when I removed the keyboard cap (the things with the buttons) a few years ago it solved all keyboards problems, for a few months or so
-Completely removing the keyboard "white things" (things with contact touch and led, no idea for the correct name), it appears that the keyboard works as expected.

So the idea is that the glue must insulate things under keyboard, and with time of use, or bad quality glue or whatever you could imagine, the keyboard will report some weird results. Maybe.

Then I put a thin paper (from an back-adhesive papers) between the metal and the white things, adding electrical insulation.
...and my pro1s keyboard is working again.

The hard things is to glue everything back, I use some T7000 adhesive glue and press it with a pencil and books, to press where it should press. You can clean the extra glue with "Essence F" but don't wait too long.

 

If I'm correct this may be a solution, we will see....

Edited January 19 by raymo
typo-clearance

[EskeRahn 5,498]

Thanks for the suggestion, Hope it will work. My daily driver is getting these issues to a degree where it is getting a nuisance, so if it can be fixed with a few hours of fiddling it might be worth it,

[raymo 183]

I agree

It's experimental, but sure I will report here if it works and then find a way to make this in a cleaner way.

I updated the last LOS and my two yellows key doesn't work anymore.

Not a big deal as shift also works, but unclear if it's a software issue or if I broke something.

The rest of the keyboard works like a charme.

[EskeRahn 5,498]

Try the app "KeyEvent Display", see if e.g. pressing "1" and YellowArrow+"1" gives the same.

[raymo 183]

Ok I tried KeyPress Event.

Yellow touch doesn't report any signal or change, either the "Fxtec Yellow touch" doesn't.

But the Fxtec-Yellow-Touch" works as expected, Fxtec + N or so send the good shorcut as expected.

This means I have broken something. Not a big deal as this yellow touch are duplicated with shift touch and I can also use Keymapper to create a new shortcut for the only missing touch aka "?"

Whatever it will work or not, the pro1 remains a strange phone.