Sharp LL-S201A - Manual (Page 14)

4. Push [OK] button, then version up will start.
5. During upgrade, the screen of LL-S201A becomes blackout. Moreover, LED
becomes red mark light.
6. Upgrade takes about 1 minute.
7. When the upgrade succeeds, LL-S201A reboots and LED becomes green lighting.
The following message box will be displayed on PC screen.
8. When an error occurs, the screen returns in about 15 seconds without rebooting.
The following message box will be displayed on PC screen.