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Bit of a beginner at repairing iPads I took the home button off the old screen but as I went to get take the home button out, this plastic ring fell off the home button, then a rubber ring started peeling off from the back. I’m not quite sure what I’m supposed to do now as this hasn’t happened in the videos I have been watching. Any help would be appreciated.

hello samuel, youtube videos are not good training material. Actually, except for one or two, the rest is just bullshit. That what fell off :-) is a positioning rubber - similar to the iPhone 6 and 6s, while the ring - it is a spacer ring to the glass level - allows you to even out by touching the surface with your finger - imperceptible difference. spacer ring - do not lose it. Rubber - you can buy a new one with new glue. This will improve the comfort of pressing. Ultimately, only the glue can be replaced, similar to the buttons from 6 and 6s. regards,