A: No, but it is good practice to do a “driver repair” via SM2_Manager → Reinstall Driver.
Early firmware (pre-2.0) used power-on LED sequences. However, this is unreliable for precise versioning. Always use the manager software. scanmatik 2 pro firmware
A: 12% is typically the erase stage. You have likely lost communication. Do not unplug for 5 minutes; sometimes it recovers. If not, unplug, restart PC, enter bootloader manually, and flash again. A: No, but it is good practice to
Download the official SM2_Manager.exe (often included with your driver package). Connect the SM2 Pro via USB. Open the utility and look for a tab labeled “Info” or “Device Status.” The firmware version is usually displayed as FW Ver: x.xx or MCU Version: 2.0.4 . sometimes it recovers. If not