Question
Downgrading BLE firmware
I have a WB55 with FUS 1.2.0 and I'm trying to use zephyr. However, zephyr is only tested up to v1.5 of the BLE firmware. I've tried everything from 1.5 to 1.13 and the lowest version I'm able to flash is 1.11. Is there a method to get to an older firmware, ideally 1.5?