Is there any way to recover
You could try reverting to your previous BIOS version and then back up your data first (to external media) before flashing the BIOS to the latest version again. If you read the pdf file on the BIOS download page it'll tell you if this newer BIOS comes with updated code for your RAID hardware. Even if there are no changes in this regard. it's always advisable to keep up to date backups - especially before doing anything like this.