Try F12 or Esc right after powering on.
F2 or Delete (Del)
F10 , F12 , Esc
If you own a Coby laptop or tablet and need to access the BIOS (e.g., to change boot order, enable virtualization, or troubleshoot), use the following keys: coby laptop bios key
Here’s a short, helpful post you can use on a blog, forum, or social media: Coby Laptop BIOS Key – How to Enter BIOS on Coby Devices Try F12 or Esc right after powering on
