Fixes screen freeze issues, improves waveform refresh rates, and stabilizes the auto-set function.
| SWD Pin | PCB Pad | Signal | |---------|---------|--------| | 1 | Square | SWDIO | | 2 | Round | SWCLK | | 3 | Large | GND | | 4 | (NC) | 3.3V (optional) |
Lower the baud rate in your flashing software to 9600 or 115200. High baud rates can cause data corruption over longer or unshielded USB cables. 3. The Device Has a Blank Screen After Flashing (Bricked) fnirsi dsotc2 firmware
Once completed, the software will display a "Success" message, and the DSO-TC2 will automatically reboot into its normal operating mode. Custom Firmware and the Transistor Tester Component
: Once the file is copied, safely eject the drive and restart the device. The unit will typically auto-install the file and reboot with the new version. Troubleshooting Common Issues Device Not Recognized : Ensure you are using a USB cable that supports data transfer , not just charging. If it still fails, check the Windows Device Manager Fixes screen freeze issues, improves waveform refresh rates,
Updates often refine the transistor tester algorithms, allowing the device to more accurately detect and measure ESR (Equivalent Series Resistance), diodes, MOSFETs, and resistors.
Before beginning the update process, gather the necessary tools and files to avoid bricking your device. 1. Hardware Requirements The unit will typically auto-install the file and
One unique aspect of the DSO-TC2 firmware is that it often requires two separate updates because of its dual nature: CH Upgrade (Oscilloscope Mode):
During a standard PC software connection (not U-disk mode), the device buttons will remain locked and inoperable.
Once the software signals a successful burn, unplug the device and power it on. You must perform a self-calibration: Navigate to the settings menu. Select . Keep the test slots empty and clear of any wires.
Have you updated your FNIRSI DSO-TC2 recently? Share your experience or ask troubleshooting questions in the comments below (or on the official FNIRSI forum).