I built the portal 4x5, so why won't it light. I'm playing single player with all setting on. What did I do wrong

  • Did you just build the obisidian structure, or did you try to light it with a flint&stone?
    – bstnhnsl
    Commented Jan 8, 2021 at 6:22
  • 3
    It would be helpful if you posted a picture so that we can see what's going on.
    – One 2 Many
    Commented Jan 8, 2021 at 7:20

2 Answers 2


Please post a screenshot so we can understand your issue better. There are a few possibilities, mentioned by Sum1.

  1. You are not lighting the portal with flint and steel.

  2. You are leaving a gap in the portal or have an extra misplaced block. Crying Obsidian will not work for nether portals.

  3. The Nether is disabled in your world.

  4. There is a flowing liquid obstructing it.

  5. I believe in older Minecraft versions (I'm going off my Console experience), you could not make a Nether portal that strayed from the standard.

In general, we'll be able to assist better if you give us what version you are on, and show us a screenshot.

  • Make sure you do not have any crying obsidian inside of the portal. It does not work with crying obsidian.
    – Yeet
    Commented Jan 20, 2021 at 5:47
  • People only play latest versions in bedrock
    – Penguin
    Commented Jan 20, 2021 at 17:46
  • @Penguin I wasn't sure if people could go to older Bedrock versions, hence why I listed that anyway just to be safe.
    – Jay
    Commented Jan 28, 2021 at 20:52

I should also add that Nether portals do not function in the "Old"(Limited sized) World setting on Bedrock Edition.

If you're on the "Infinite"/default or "Flat" world types, then this restriction doesn't apply, and Nether portals should be able to function normally.

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