Nano VNA resetten

If you need to reset your NanoVNA (Nano Vector Network Analyzer), there are a few methods depending on the issue you're facing:

1. Soft Reset (Reboot)

• Simply power off the device and turn it back on.
• If the device is frozen, this may resolve minor software glitches.

2. Factory Reset (Reset Calibration & Settings)

• From the menu:
  • Go to System > Reset (or Reset Config).
  • This will clear saved calibrations and settings but won’t affect the firmware.

3. Firmware Reflash (Hard Reset)

If the device is unresponsive or malfunctioning:

1. Download the latest firmware from the official repository (e.g., NanoVNA-H4 or NanoVNA-V2).
2. Connect via DFU Mode:
   • Hold the BOOT button (if your model has one) while plugging in USB.
   • On some models, shorting a specific pin during power-up may be needed.
3. Flash using STM32 DFU tools (e.g., STM32CubeProgrammer or dfu-util).

4. Hardware Reset (For Severe Issues)

• If the device is completely unresponsive, try:
  • Disconnecting the battery (if applicable).
  • Checking for loose connections or short circuits.

Troubleshooting Tips

• If calibration is lost, recalibrate using Open/Short/Load standards.
• If the screen is glitchy, check connections or try a different firmware version.

Would you like guidance on a specific NanoVNA model (e.g., NanoVNA-H4, V2, SAA-2N)? Let me know!