Use the UP or DOWN arrows until the display shows PA2 .
Use the UP arrow to scroll to the password (e.g., 22 or 27 ). eliwell+smp5500+password+exclusive
Use the arrow keys to scroll until the label PA2 (or PASS ) appears. Use the UP or DOWN arrows until the display shows PA2
This "exclusive" level is for developers using the Free Studio development tool . eliwell+smp5500+password+exclusive
If that does not work, try or 1322 . These are legacy defaults that Eliwell engineers used during factory setup.