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2) Via EEPROM PCBA
a. Take out the PCBA and weld (or install) the EEPROM chip
onto it.
b. Turn the side with characters to the front (which will make
characters upside down).
c. Install the entire PCBA onto KC501 and connect it to the
cross-signal pins.
Before welding (or installing) the chip onto the PCBA, make sure that
you are installing on the right direction. There should be a groove, or a dot
that indicates the location of pin 1.
