Hello! I want to update my motherboard a320m-hdv the current bios v2.30 which version should update which is the most stable 2.50 / 3.00 / 3.10 / 3.30 / 3.40 / 4.40 / 4.70 / 4.80
You would likely want to update to the most recent version. Of those you have listed that would be 4.80. If you have specific questions you should ask the company that made your mother board. They would be the expert on their hardware.