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Back to default status

I have an nRF52840 - install the BLE Sniffer Software on it - play a littel Bit  - happy :-)

(dont help me to scan the communication between 2 devices - but thats a other story)

now i want get back to te default starting Point - try something other :-) But

-nrf Connect dont see the Device -

2021-04-22T07:50:12.614Z ERROR Unsupported device. The detected device could not be recognized as neither JLink device nor Nordic USB device.

Win 10 OS - WIn10 shows in Devices the nRF Sniffer -

Sniffer works so far .... BUT:

How can i reset the USB Dogel to delivery status ?

PCA 10059 , 1.2.0

J-Link Commander : Connecting to J-Link via USB...FAILED: Cannot connect to J-Link.

# nRFConnect System Report - 2021-04-22T09-05-10.841Z

- System:     Panasonic Corporation CFMX4-1
- BIOS:       American Megatrends Inc. 05.06.05
- CPU:        1 x IntelRegistered CoreTm i5-5300U 2.30 GHz 4 cores (2 physical)
- Memory:     4.2 GB free of 7.9 GB total
- Filesystem: C: (NTFS) 75 GB 64.5% used

- OS:         Microsoft Windows 10 Pro (10.0.19042) win32 ia32

- Versions
    - kernel: 10.0.19042
    - git:
    - node: 12.13.0
    - python: 3.9.4
    - python3:

- Connected devices:
    - COM4: 5B753D3912E8644E

  • Hello,

    Please try the following:

    1. Put the dongle into DFU mode by pressing the reset button while the USB connected. The red LED should start to blink when it's in DFU mode.

    2. Open the Bluetooth Low Energy app in nRF connect for desktop, select the Dongle from the dropdown, then click "Yes" when prompted to program the device.

    3. Dongle should be back to its factory state at this point.

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