Fnirsi Dso-tc2 Firmware | [2021]

The firmware does, however, include a few thoughtful touches: a battery voltage indicator, a screenshot capture function (saving to a BMP file), and a simple waveform generator (using the same probe as an output). These features suggest that the developers did listen to user feedback, but only within the constraints of an already-finished firmware architecture.

While the hardware architecture is similar, the custom display and button routing on the FNIRSI board mean standard open-source firmwares will not work directly out of the box without heavily modified code source compilation. It is highly recommended to stick to official FNIRSI releases to avoid permanently bricking the display controller.

Independent developers on EEVblog Forum and GitHub have reverse-engineered the bootloader. They offer that unlock: fnirsi dso-tc2 firmware

The official FNIRSI burning tools are designed for Windows operating systems.

Ensure you are using a data-capable Type-C cable and that your computer's USB drivers are functioning. Try a different computer or USB port if possible. The firmware does, however, include a few thoughtful

To flash new software, the device must be forced into update mode. Turn off your FNIRSI DSO-TC2 completely.

: Prevents system crashes during high-frequency signal sampling. It is highly recommended to stick to official

Updating the DSO-TC2 is surprisingly simple, but FNIRSI’s documentation is scattered. Here is the as of 2025.

To help find the exact files or steps for your specific device setup, please tell me:

Whether you are a firmware update veteran or a nervous first-timer, remember: a careful, methodical approach guarantees success. Enjoy your upgraded DSO-TC2, and happy probing

Where the component tester excels, the oscilloscope firmware reveals the device’s cost-cutting nature. The DSO-TC2 is marketed as a 2.5 MHz analog bandwidth scope with a 10 MSa/s sampling rate—adequate for audio frequencies and basic microcontroller debugging (e.g., checking PWM signals or I2C clock lines). The firmware manages the STM32’s ADC (analog-to-digital converter) and DMA (direct memory access) to capture waveforms, then renders them on the display.