Update iOS to the latest version. Check for debris in the Lightning port if your model uses it.
Troubleshooting Home Button Issues on iPhone 12
Allowing the device to dry and cool down sometimes resolves the issue, but corrosion may already be setting in. Wipe the screen with a microfiber cloth to remove oils.
Moisture and Heat Exposure to moisture or high temperatures can warp the internal components. Common Causes of Failure Over time, the mechanical switch under the glass accumulates dust and lint from daily use.
Troubleshooting Home Button Issues on iPhone 12
When your iPhone home button stops responding, it disrupts the entire flow of your day. Attempting a DIY repair without experience often leads to more expensive damage.
More About My iphone home button is not working
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