Korg M1 | Serial Number !free!

Finding the serial number on your Korg M1 is the first step toward verifying its age and history. Because the M1 was produced in such high volume—estimated at over 250,000 units between 1988 and 1995—serial numbers are the most reliable way to track its production timeline Serial Number Location The serial number is typically found on the bottom of the unit

Korg did not explicitly print the date on the sticker, but the industry has reverse-engineered the system based on thousands of user-submitted units. Korg M1 Serial Number

key while turning the power on to see the firmware version (e.g., v1.19). Sound On Sound 2. Software M1 (KORG Collection / M1 Le) Finding the serial number on your Korg M1

• Sticker looks too clean / font is wrong: Original Korg serial stickers are matte silver or black with a specific dot-matrix-style print. Fakes are often glossy or laser-printed.
• No internal PCB number: If you open the unit (16 screws) and the mainboard has no handwritten or silkscreened serial matching the back, the board was swapped.
• Serial suggests 1988 but board is rev 4: Someone put a late-model motherboard into an early case to sell it as “original.” A mismatch isn’t a deal-breaker for players, but it kills collector value.

How to verify or research an M1 serial number Sticker looks too clean / font is wrong: