Disconnect all BNC probes from both Channel 1 and Channel 2 inputs. Press the button. Select Auto Calibration (or Calibrate ).
Use a high-quality USB-A to USB-B cable (standard printer cable). Avoid long or unshielded cables.
Fixes software-induced jitter and rendering artifacts on the 7-inch TFT display.
Always remember: backup your old firmware (if possible), use a branded microSD card, and never interrupt the power during writing. If you follow this guide, your FNIRSI 1014D will continue to serve you with improved accuracy and features for years to come.
This is the most critical step. The device must be in "Device Firmware Update" (DFU) mode to accept new code. fnirsi1014d firmware update work
The screen will display:
Understanding the internal process will help you avoid mistakes. Here is exactly how the update works step-by-step at a technical level:
If this sequence fails, your is interrupted—often due to wrong file naming or a corrupted microSD card.
Out-of-the-box, factory versions of the FNIRSI-1014D firmware frequently suffer from minor system instabilities. A firmware update replaces the core operating software stored on the internal flash memory to optimize hardware communication. Updating your device provides several immediate benefits: Disconnect all BNC probes from both Channel 1
If your firmware package includes an .exe flashing utility, open it as an Administrator.
To help you find the exact firmware files for your specific unit, let me know:
Corrected software algorithms for Vpp (Peak-to-Peak) and frequency calculations.
To help find the exact file you need, what does your unit show, or what specific bug are you trying to fix? Share public link Use a high-quality USB-A to USB-B cable (standard
Approximately 1-2 times per year. Do not expect monthly updates. Check the official FNIRSI store page on Aliexpress or the FNIRSI Facebook group for announcements.
Resolving issues related to USB export, waveform storage, and triggering. Prerequisites: What You Need Before You Start
The actual installation happens on the device itself during a specific boot sequence. Turn the FNIRSI-1014D using the power button.