Pinebook 14" keyboard misses keypresses UPDATE

[MarkHaysHarris777]

Greetings,

This is a footnote to this keyboard nightmare;

... I have discovered why the Alt keys on my keyboard are dead;  one corner pin on the control chip is bent and suffers one of three distinct possibilities:

1)  the pin missed getting soldered at all

2)  the pin is soldered but is so skewed to the left that its a cold solder joint at best , or

3) the pin is actually shorted against the pin-pad next door !

Using a microscope the defect on the board is very clearly evident. I am sorely temped to try and correct the defect;  on the other hand,  the keyboard has been remapped and the pinebook functions, so I may just leave this little anomaly alone (gives the device character).  I haven't fully decided yet.  The pin is a corner pin and fairly easy to get to with a very fine point.  I will probably wait for the verification from the schematic that the pin in question is the line on the matrix affecting both Alt keys.

Note:  
  From the schematic:  the pin in question is pin(12)  labeled in red (C3) and labeled in blue|green (P01).

  so, pin(12) is either loose, poorly connected, or shorted to pin(11).



PS.  don't remove that shield|heatsink over the main board without a damned good reason !  That thin metal can is virtually impossible to replace ( many small clips have to be lined up ( and three heat transfer pads ) not to mention the eMMC module is double sided taped to the shield !

( words to the wise )