The ECU inside M-Tronic or injection engines needs stable power to communicate with your PC.
Without DS 20, an M-Tronic saw (MS 261, 362, 462, 500i) is a black box. The software tells you why the saw is running lean. Is it a bad solenoid? A faulty coil? Or simply a firmware glitch? You can see the control pressure readings live. For the $1,500 MS 500i (fuel injected), this software is not a luxury—it is a requirement for repair. stihl diagnostic software 20 fixed
The Windows-based application that interprets engine data, tracks operating hours, logs fault codes, and manages firmware flashing. The ECU inside M-Tronic or injection engines needs
Close the SDS software entirely. Unplug the USB dongle, wait ten seconds, and reinsert it into a different USB port. Open your system's Device Manager, locate the Bluetooth Serial Port profile, and verify it falls between COM1 and COM8 . Re-launch SDS and select "Manually Connect via Serial Number" within the connection utility window. Error: "Voltage Threshold Warning" Is it a bad solenoid