Why won't my Minecraft custom skin change?

It's been almost 10 years since 1.6.4 has been released and today I am having a issue with this version. My skin is registered with minecraft.net already, but my skin is not showing up.

I tried char.png method but still didn't work, is there any fix?

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1 Answer

You're running into this bug:

Skins are now supported only in Minecraft 1.7.9 (released in April 2014) and newer versions, because older versions relied on an API that has since been deprecated and removed. You may have luck working around this with mods such as Skin fixer or Lumy Skin patch.

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