Well been here before but anyway when i get to the screen that says NEW KL25Z Setup it says at the bottom "no devices have been found yet....". Sorry if i'm missing something.
I guess the Config Tool doesn't recognize the mbed version of the boot loader as a boot loader, so you'll have to do the update manually.
- Go to http://pemicro.com/opensda/
- Find OpenSDA Firmware (MSD & Debug)
- Go through the procedure to do the download, which probably requires setting up an account
- Unzip the download to a folder on your hard disk
- Unplug all KL25Z devices
- Open My Computer
- Press and hold the KL25Z reset button (the button between the two USB plugs)
- While keeping the reset button pressed, plug in the OpsnSDA (programming) port
- Release the reset button
- You see see a new thumb drive appear with a name like BOOTLOADERAPP. (Or maybe still MBED in your case.)
- In the PEMicro software you downloaded above, find BOOTUPDATEAPP_Pemicro_vXXX.SDA (the XXX is a version number, varies)
- Drag and drop the file onto the thumb drive identified above
- Wait for Windows to finish copying the file
- Unplug the KL25Z
- Repeat the whole process, but this time drag and drop MSD-DEBUG-FRDM-KL25Z_Pemicro_vXXX.SDA when you get to the file copy step
- Unplug the KL25Z again, then plug it back in
- The thumb drive should now have the volume label FRDM-KL25Z
Remember that this procedure only works with Windows 7 if you have old boot loader firmware. If you try it on Win8/10, it typically will appear to work but won't actually change anything on the device. (Part of the Win8/10 bug is that you don't even get any error feedback that it's not working; it just doesn't update.)