To update the firmware on your FNIRSI DSO-TC2 (a 2-in-1 digital oscilloscope and transistor tester), follow the standard "CH UPGRADE" process used for FNIRSI handheld devices. Firmware Update Instructions Preparation : Ensure the device is turned off Type-C data cable that supports data transfer (it must have D+ and D- lines). Enter Upgrade Mode
: Reverse engineering for interoperability is permitted in many jurisdictions under fair use; however, redistributing modified firmware may violate FNIRSI’s EULA. Users assume all risks. fnirsi dsotc2 firmware
If Windows does not recognize it, install the (often included in the firmware package or downloadable from ST’s website). To update the firmware on your FNIRSI DSO-TC2
Once the file is copied, safely eject the drive from your computer. Disconnect the USB cable and power the device on normally. Navigate to the menu to verify that the version number has changed. Common Troubleshooting Tips Users assume all risks
Fixes issues where the transistor tester might misidentify components or provide fluctuating values.
The has become a staple on the benches of hobbyists and engineers alike. It is a clever 2-in-1 device that combines a digital oscilloscope with a versatile transistor tester. However, like many budget-friendly multi-tools, the factory software often leaves room for improvement.