E-X20A: How do I know the serial number of this unit? January 16, 2026 06:28 Updated Follow *The E-X20A is distributed in limited countries/areas.See the barcode sticker on the bottom of the E-X20A. The last seven digits, which is a combination of alpha-numeric characters and numbers, printed below the barcode is the serial number.The image below is an example of the E-X50. Related articles How do I find/enter my Serial Number? E-X50: How Do I Find the Serial Number? E-X20A: The pedal switch is working in reverse. E-X20: Does it support half-pedaling? GO:PIANO88 (GO-88P): How do I know the serial number of this unit?