If i remember correctly, you need the BIOS CAP converter tool from their website. This is simply a modified 2105 BIOS in ROM format (the old format). With this, you can flash your new BIOS in a 2-step flash process: First, your BIOS is flashed to this modified 2105 BIOS version, which has the converter build in and converts your BIOS structure to the new CAP format. After that, the normal new BIOS (in CAP format this time) can be flashed as normal.