Power Profiler Kit II doesn't work, How do I force software updates？

[YuWenWen]

Whe i User nRF Connect for Desktop， Accidentally updated the  wrong software, 

 It doesn't work at all when I plug in a Usb.  Leds  completely faild to indicate  status. 

No new decices is displayed in the device list. 

I want to update th e software and get it working again. 

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[Turbo J]

If the power profiler kits work like older DKs, just old the Reset button down while pluggin it into USB, wait for the storage drive to pop up and put the interface mcu firmware binary back on.

Procedure should be documented in the manual, too.

[Sigurd Hellesvik]

See the answer in  RE: PPK2 not turning on , which looks similar to your issue.

Does that fix your issue?

Regards,
Sigurd Hellesvik