Have you ever applied the bootloader update to that Core?
https://github.com/spark/firmware/blob/bootloader-patch-update/build/core-firmware.bin
[SOLVED] Not able to put my core in stop mode (it just wakes up)
Have you ever applied the bootloader update to that Core?
https://github.com/spark/firmware/blob/bootloader-patch-update/build/core-firmware.bin
[SOLVED] Not able to put my core in stop mode (it just wakes up)