if you screen got broken inner, it will not waterproof. So you need go to a repair shop and fix your screen.
since you are wondering after change a new screen will still waterproof, i think yes.
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for mostly screen repair, they will put a new [https://www.amazon.com/Ogodeal-Adhesive-Waterproof-Stickers-Replacement/dp/B072XF4SWT/ref=sr_1_1?ie=UTF8&keywords=iphone+7+plus+waterproof+adhesive|iphone 7 plus waterproof sticker,] so that your iphone will still "waterproof" . Maybe you can call a nearby repair shop and confirm with them.
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for mostly screen repair, they will put a new iphone 7 plus waterproof sticker, so that your iphone will still "waterproof" . Maybe you can call a nearby repair shop and confirm with them.
if you screen got broken inner, it will not waterproof. So you need go to a repair shop and fix your screen.
since you are wondering after change a new screen will still waterproof, i think yes.
for mostly screen repair, they will put a new [https://www.amazon.com/Ogodeal-Adhesive-Waterproof-Stickers-Replacement/dp/B072XF4SWT/ref=sr_1_1?ie=UTF8&keywords=iphone+7+plus+waterproof+adhesive|iphone 7 plus waterproof sticker,] so that your iphone will still "waterproof" . Maybe you can call a nearby repair shop and confirm with them.