I'm using a FRDM-KL25Z board. When pluggin the device to my laptop (win 11) nothing happens. When entering bootloader mode, the device is shown on my laptop as BOOTLOADER, but the status LED blinks 8 times with a 2 second pause. Tried updating the firmware following these instructions (https://mcuoneclipse.com/2014/11/01/illustrated-step-by-step-instructions-updating-the-freescale-fre...) but without succes. I also noticed the application version is: 0.00 ...
Does anyone has an idea how to solve this? Thanks in advance!
The issue is with Windows scanning USB storage devices, which confuses the older bootloader version of OpenSDA.
I know for sure that updating the boards with Win7 works (that's why I keep an old Win7 laptop on the shelf, e.g. using https://mcuoneclipse.com/2014/11/01/illustrated-step-by-step-instructions-updating-the-freescale-fre... ). You might try a Win10 based approach I have described here:
https://mcuoneclipse.com/2018/04/10/recovering-opensda-boards-with-windows-10/
(but I have not used that one for years as doing things with the Win7 Laptop instead).
I hope this helps,
Erich