At the MT download site is information: NOTE: Do not use BIOS v2.13 on RouterBoard 150!
What problem is with 2.13 on RB150?
There was BIOS version 1.14 at routerboard.com - for RB150. May I use 1.14 for RB150?
RB150 don´t boot with BIOS 2.13. Use BIOS 2.14. Its OK 