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That's the stolen goods have entered the screen, go to the phone repair station and open the screen for cleaning. Smartphone screens are generally glued on. Be careful with the cables on your own.
Settings - Developer Options - Show touch track, check mark removed.
If you are using a Huawei phone, we recommend that you do the following: >>>More
White smoke is because the moisture in the mobile phone is volatilizing, normal, after drying, after about 5 days, try in use, if you can't turn on the machine, then there is no need to repair, directly scrapped, if it is Apple's mobile phone, you can take it to after-sales, after-sales can add money for a new (good product) no packaging and no accessories 3 months warranty.
Electronics that fall into the water and are fished up again. >>>More
That's water vapor, or it's the minerals in the toilet Because you don't have it, the screen is disassembled, and the water vapor can't go out and stays on the inside of the screen.