I have a DECT cordless phone which was dropped into clean water while
switched on. After drying out, the phone seems to behave normally but
the LCD display remains blank. The handset I a Panasonic KXA118EM, as
supplied with the kx-tcd735em system.

Is there any chance that this might be a simple repair such as a
connector needing reseating or similar? I've repaired oldish
oscilloscopes and other stuff, but don't want to get into surface mount
soldering.

Best wishes,
--
Michael Salem