Z30 rattling volume keys fix.
I just fixed my Z30 rattling keys and now I'm typing with zero sound from the keys and can even shake my device with no sound whatsoever coming from them. They still function perfectly, too.
I first tried a small bit of paper slid under the very slight opening beneath the keys, but this wasn't ideal when replacing the battery cover. So instead I used a tiny bit of sellotape, not folded or anything, just simply placed neatly across the underside of the keys in one row, then neatly folded across the back inside panel. Simply place the battery cover over this and you see zero tape, but can enjoy a sturdy phone experience. So glad and this was so simple!
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