Scooter
SR4 Max 2024 - 2025
How to find your bike's versions
On the TFT: Menu → System → About. If yours doesn't match anything below - or you have an entirely different production date - send us the four version strings and we'll add it to the table.
| Production date | HW | OS | HMI | MCU SW | Source | |
|---|---|---|---|---|---|---|
| from Jan 2026 | SS621-L7 | SS621X13-OS-V2.3.1 | SS621X13-HMI-V1.1 | SS621X13-02 | Confirmed Owner-reported | Notes → |
See also: firmware versions across the lineup.