Tempered glass screen protector floating

[Dirt113]

As shown in the attachment, the tempered glass is failing to adhere completely to the phone screen. Does anyone have a fix for this issue?

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[luhai]

I has same phone with glass. Most like it because the surface is not clean enough, I usually wipe it alcohol multiple time before applying, then press it under a heavy book for 24hour but at this stage it too late for cleaning, perhaps you can try the book.