Do you updated the FRDM-KL25 bootloader version or not at first?
Please check the P&E Micro debugger page：
You need to update the bootloader at first.
BTW, you also can use the JLINK firmware.
You can enter the bootloader mode then download the JLINK firmware, whether you can make it works or not?
Please enter the bootloader mode at first, power down the board, then press the on board reset button and hold on it, then plug the USB cable to the board, then release the reset button, can you find the BOOTLOADER device or not?
Please check it at first.
Any updated information, please kindly let me know.
The pc shows bootloader for not longer than 10 sec then error message of the same thing show up on my pc, and also it says please insert a disk for bootloader or sth + error message : Location not found. I want to double check for the path for the PE micro driver installation. Is it just within my computer. Or is there a specific path i need to install. I looked at other tutorial, it meant to show USB - CDC port . I dont see that on my pc. the only thing it shows up after installing the PE driver is in the jungo connectivity.
Do you have the win7 system?
You can find one win7 system, and check whether you can enter the bootloader and find the device or not? From the P&E Micro webpage, you can know:
Important: If you are currently running Bootloader version 1.10 or earlier, you will need to find a Windows XP or Windows 7 PC to perform this update.Please follow these steps to find out what version of Bootloader your board is programmed with:
PEMicro FAQ need to use the win7 system to update the old bootloader.
You can try to it.