The FNIRSI DSO-TC2 is a popular 2-in-1 device that combines a digital oscilloscope with a transistor tester. Keeping its firmware updated is essential for fixing waveform capture bugs, improving component recognition accuracy, and accessing new features. Official Firmware Sources
Press and hold the down arrow key, then power on the device. fnirsi dso-tc2 firmware
Digital Oscilloscope: A basic, pocket-sized scope for analyzing low-frequency electronic waveforms. The FNIRSI DSO-TC2 is a popular 2-in-1 device
if (probe_setting == 1)
attenuation = 1.0;
else
attenuation = 10.0;
New firmware released for the FNIRSI DSO-TC2 — what’s changed and how to update
I just installed the latest firmware for the FNIRSI DSO‑TC2 and here’s a quick rundown for anyone thinking of updating. Key limitations and failure modes
FNIRSI DSO-TC2 is a 2-in-1 handheld digital oscilloscope and transistor tester that supports firmware updates via a PC connection. While specific "new" features for the TC2 are rarely detailed in centralized changelogs, firmware updates for this product line generally focus on system stability, measurement accuracy, and UI improvements. Core Capabilities via Firmware
- Key limitations and failure modes
- Guided measurement modes: provide preconfigured setups for common lab tasks (e.g., RC time constant, square-wave rise/fall measurement, PWM analysis) to help students focus on experiment goals rather than instrument configuration.
- Clear on-screen help and feedback: concise contextual hints for controls and measurement status reduce the learning curve for novices.
- Exportable lab-friendly formats: CSV, WAV, and JSON export for captured data, plus automatic labeling of axis scales and timestamps, improves integration with spreadsheets and analysis tools used in classrooms.
- Simulation and replay: ability to load previously captured files for offline analysis or classroom demonstrations fosters reproducible teaching examples.
Have you successfully updated your DSO-TC2? Share your version number and experience in the comments below. For urgent brick recovery, visit the EEVblog forum thread #FNIRSI-DSO-TC2.