HP Chromebook 11A G6 EE (Barla) Firmware Errors

On the Device Compatibility page I see this “Stoneyridge: Some StoneyRidge devices (CAREENA? BARLA?) may not currently have functional Legacy Boot Mode due to bugs in Google’s firmware.”

I guess this is me. So now my question is: Can I update the Google Firmware so it DOES work?
Or can I try and unlock the device’s Write Protection and install the Full Rom Firmware?

What is my best option here? If I have these problems with the bootloader, is it wise to go one step beyond and go for the Full Rom? Or will the defective bootloader be a game stopper?