Failed to start PPK

[TedLee]

Dear Nordic Engineers,

When I plugged in and I opened the Power Profiler App, a pop up required me to update the device firmware.

During the FW upgrade the device flashed with red light and when the upgrade was completed it stopped flashing.

Now, even if unplugged and plugged again, the device LED does not flash anymore and the device is not recognized by the Power Profiler App.

The device is not even listed in the Windows Device Manager

I think this is a problem after updating the firmware so I download  firmware  in my PPK2 but it doesn't work

Then firmware  downloaded the firmware at https://devzone.nordicsemi.com/f/nordic-q-a/70738/ppk2-stop-functioning-after-firmware-update

 I tried this ticket https://devzone.nordicsemi.com/f/nordic-q-a/70738/ppk2-stop-functioning-after-firmware-update It still doesn't solve the problem

I use Programmer download firmware  at my PPK2

I downloaded the firmware but Failed to start PPK

Is there anything else I need to do?Please give me a good suggestion

[Simonr]

Hi

Can you show me a picture of your PPK where you have shorted GND to TP34 on the PPK2? That should put it back into the boorloader mode, and if you connect the "Unknown" board in the Power Profiler app you should get the pop-up that does says that the device needs to be programmed, and let you use the PPK2 as expected.

Best regards,

Simon

[TedLee]

Hi Simon

I have solved the problem, download firmware startup failure is caused by incomplete firmware

Thank you for your reply

Thanks and Best regards

TedLee