Can the SFN handheld tuner be used on more than one bike?
No — and yes.

Once you flash your first bike, the SFN handheld locks to that VIN.
It’s married. Committed. No cheating.

Want to use it on another bike?
You’ll need to flash the first one back to stock — only then can you unlock and pair it with a new machine.

One tuner. One bike. Until you break the bond.
That’s how we keep it clean, reliable, and powerful — the SFN way.

Plug your SFN handheld device into your computer

Launch the SFN Flasher+ software

Click the “Info” button

At the bottom of the page, you’ll see the last file written to the ECU

“Ori” means your bike is running the original (stock) file

Mod files will be labeled and match what’s listed in the “notes” section of the mod file dropdown

What does the SFN handheld tuner do?

It stores multiple maps so you can switch tunes anytime — no waiting, no downtime.
No need to mail your ECU. Flash from home, whenever you want.
Go back to stock anytime.
Read and clear fault codes.
On some models, even reset DTCs and maintenance lights.

Fast. Flexible. Fully in your control — the SFN way.