For an easier repair, use our [product|IF371-002|fix kit|new_window=true] and follow [guide|98255|this shorter guide|new_window=true] to replace your iPhone’s entire display assembly.
For more advanced fixers, this guide will help you replace ''only'' the iPhone 8 LCD screen + digitizer assembly (a.k.a. the bare “front panel”). This requires you to transfer several components from your original screen to the new one before installing it—including the front-facing camera, earpiece speaker, LCD shield plate, and home button assembly.
For all screen/display repairs, '''it's important to carefully transfer the original home/Touch ID sensor onto the new display in order for it to function.''' The solid-state home button is paired to its original logic board by Apple, so replacing it will render it unusable.
As of August 2018, replacing the iPhone 8 display disables the ambient light sensor, even when using original Apple parts. Consequently, auto-brightness and True Tone functions won't work with replacement displays. [https://ifixit.org/blog/9917/11-3-update-breaking-iphone-screens/|This may be due to a bug in iOS 11]. The beta release of iOS 12 partially fixes this issue, so it’s possible Apple will resolve it in a future iOS update.
'''Note''': If your iPhone’s auto brightness feature does not work properly after your screen repair, make sure your iPhone is updated to [https://support.apple.com/ios/update|iOS 12|new_window=true]. True Tone functionality is disabled after a screen replacement, even when using an original Apple screen.