FRDM-KL25Z : Flash error - Keil uVision5

[Alexa18]

I'm a beginner. I'm trying to flash the example blink code to FRDM KL25Z board on Keil. But I'm getting this error "No debug unit device found" (Whereas I've plugged in my board to my laptop). Can anyone help me out with this ?

[Alexa18]

It says Port undetected as shown above. I tried disconnecting and reconnecting and refreshing, but it is still not working. Can you please make me understand what is causing the problem?

[Robin_Shen]

Please check whether the bootloader and firmware of OpenSDA is OK by refer: Recovering OpenSDA Boards with Windows 10

[Alexa18]

Hey, Thank you. My bootloader Version is 1.09.    And I'm using Windows 10.

I followed instructions given in the link that you had suggested. But, I failed to update the bootloader. 

The version is not changing. Also the LASTSTAT.txt file in bootloader drive used to have '"error" before. But now it says "programming..."

So yeah, I'm unable to update the bootloader. Any solutions to this?

[Robin_Shen]

Please make sure this step: Disable/stop Windows Services. Some computers may enable automatically.

[Alexa18]

Yes it was disabled

[Robin_Shen]

Have you tried to use other PC? If still not work, then you may have to update the bootloader by using Windows 7.

[Robin_Shen]

Hi Alexa,

The onboard debugger is PEMicro OpenSDA, so please select it and try to debug again.

You can getting started with MCUXpresso Software and Tools, there are a lots of Keil MDK project examples in MCUXpresso SDK.

Best Regards,
Robin
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[Alexa18]

I'm getting this error with that. 

Also when I plug it in to my laptop, it doesn't appear as a storage device. An LED on the board blinks right when I connect it to my PC and goes off

[Robin_Shen]

PE34298 is a known issue with old project that select Freesacle as Vendor. Please click Select New Device and chose NXP.