Hi Jace,
After you download it, you must title the board, the led will blink, if you don't move the board, the LED won't light.
When you buy the board, and power on it, can the on board LED light?
Now, follow my step to check the led.
1. Download the JLINK debug fimware from this link:
SEGGER - The Embedded Experts - Downloads
1) power off the board
2) press the on board reset button, hold on it, at the same time, power on the board
You will find your board is a device named as "BOOTLOADER"
Then release the reset button.
3) Send "01_OpenSDA_FRDM-K22F.bin" to the "BOOTLOADER", and wait it finished.
4) unplug the board, then plug it again.
You will find your board is a device named as "FRDM-K22FJ"
2. Please use my attached FRDM-K22 LED blink bin code.
unzip it, you will get a file named as : FRDM-K22F_OOBE_1v0.bin
3. Send FRDM-K22F_OOBE_1v0 to your FRDM-K22FJ device
Wait the sending is finished
Now, press the reset button, check the board, whether the LED can blink in RED, BLUE and GREEN?
If the led still can't blink, your on board LED may broken.
Wish it helps you!
Have a great day,
Kerry
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------