I have an M1G with hardware version 0.11, boot version 3.1.15 and firmware 4.3.12. To upgrade the firmware to version 4.6.8, do I first update the boot version to 3.3.2, then update the boot version again to 3.3.6 and then finally update the firmware to 4.6.8? Or must I update to boot version 3.3.2, and then update to a compatible firmware (e.g. v4.5.x), before I attempt to install boot version 3.3.6 / firmware 4.6.8? Thanks.