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How do I repair the silicone membrane under my spacebar I accidently ripped out? Alternatively where would you recommend me getting it fixed(Apple store or otherwise). I’m just worried they are going to make me replace everything or it taking a long time since school is starting soon

The membrane is not repairable! All you can do is carefully remove any pieces which are interfering with the space bar. From now on you can’t eat or drink anything that could get in. Or… Get the uppercase replaced $$$ 13” MacBook Pro Upper Case aprox $330 Space Grey, Apple P/N 661-13159Silver, Apple P/N 661-13160