My wifi button is not working on my iphone

Optimize the range of the mobile network, see this Apple article:

If you see No Service or Searching on your iPhone or iPad

If you see No Service or Searching on your iPhone or iPad - Apple Support

Jhozey wrote:

My wifi button is not working

https://discussions.apple.com/content/attachment/e6fbec06-d85d-4195-a6f5-6f62e6ac4696

[Re-Titled by Moderator]

settings - general - reset - reset network settings.