PPK2 stop functioning after firmware update

RE: PPK2 stop functioning after firmware update

micropap — Sun, 26 Apr 2026 14:59:05 GMT

Hi,

I'm experiencing exact issue but the every time the upload finished the board stacks another time.

On connect the system creates the VCP on the Windows system but nothing more.

What can I do?

Thanks.

RE: PPK2 stop functioning after firmware update

Øyvind — Thu, 21 Jan 2021 12:12:04 GMT

Good to hear! 🙂

Have a good day!

RE: PPK2 stop functioning after firmware update

leo93 — Thu, 21 Jan 2021 12:02:01 GMT

Thank you.

It worked!

Great!

RE: PPK2 stop functioning after firmware update

Øyvind — Thu, 21 Jan 2021 10:08:03 GMT

Hello,

Can you please try the following:

Disconnect all other nordic devices from the computer, turn off the kit and remove it from the plastic by removing the four screws. Insert USB to J2 (USB DATA/POWER). Short a connection between GND (e.g on the four pin power output header) to TP34 on the PPK2. While holding the jumper cable, turn the kit on and remove the jumper. Now the PPK2 should be in bootloader again.

Open the PPK app, and select the device which is now just a serial number, e.g

When selecting it, the user will be prompted to program the application and it should now be working again.

Kind regards,
Øyvind