The device should appear as a removable drive (usually named "FNIRSI" or "USB Disk") in Windows Explorer. Copy Firmware:
: Calibrates the component tester for more precise resistor, diode, and transistor readings.
The DSO-TC2 operates using two distinct microcontrollers, which explains why firmware updates are often split into two separate processes: Oscilloscope MCU : Typically a WCH CH32F103 C8T6 , responsible for signal acquisition and waveform display. Component Tester MCU : Often an ARM MM32F103 RET6 fnirsi dso-tc2 firmware
Most FNIRSI tools require a specific button combination to accept new code over USB. Power off the DSO-TC2 completely.
What to check before updating
Download the firmware package specifically labeled for the .
Official FNIRSI Firmware File (Download from the Fnirsi manuals & firmware page) Step-by-Step Update Procedure The device should appear as a removable drive
Occasional additions of new measurement modes or UI improvements. How to Check Your Current Firmware Version