On my custom board I have a WP85 and the same bluetooth chip of the WL18XX wifi/bt combo.
To be able to communicate with the bluetooth chip I have to add those kernel config:
To build the kernel and create a new rootfs with several 3dparties libraries I use the yocto Legato 16.04 (fwupdate query returned 07.10.04.00 on the target).
The problem is that the generated cwe with these kernel configs break my WP85 and I can’t see anything on the USB. I can’t connect to it through ssh or reflash it with the sierra tool.
However if I generate a cwe image with only this kernel config: CONFIG_BT=y I can successfully update the kernel and rootfs.
- Can you explain me why this is happening ?
- If no more USB interface is detected on windows and Linux, is it still possible to restore the WP85 ?