Hi notanivipul,
That's really a little strange, you are using the same IDE version as me.
What's the SDK version you are using? SDK2.6.7?
Please check this picture:
When you import the SDK project, please use the UART instead of the console, then try it again.


If you still have download issue, please also give me your MCUXPresso JLINK debug log, you can find the log like my attached picture:

You can find my log in the attachment, you also can compare your own log with my log.
Except MCUXPresso IDE, do you have any other IDE, eg, IAR
The following picture is my IAR project test result, as you know, the SDK also contains the IAR project.


We still have another way, you can download the code without the IDE, we can use the JLINK commander to download the app firmware .bin file directly.
Before you download the code, you can also erase it.
1. Connect the board, and find the arm core
2. use commander: unlock kinetis
to erase all the chip flash
3. commander: usb
to reconnect the chip, and find the ARM core
4. copy my attached frdmkw38_hello_world.bin to the JLINK install path:
C:\Program Files (x86)\SEGGER\JLink
5. use commander: loaderfile frdmkw38_hello_world.bin
You will find the app.bin is downloaded, please check my attached picture.



Any updated information, please kindly let me know.
Wish it helps you!
If you still have questions about it, please kindly let me know!
Best Regards,
Kerry
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