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iPhone4 is waterproof, no problem, my friend has put it in the washing machine a few times to wash it.
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Try it, if it burns, it's not clean, I'm afraid that the dirt will corrode and be unclean!
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As long as it's not in the water, it's fine! It's best to blow it down with a hair dryer.
Hello. Let's see if it can turn on. If you can't, it is recommended to take it to the after-sales service. It should be changed to some hardware and can still be used.
After the electronic product enters the water, you should immediately turn off all power and wait for it to be thoroughly dried before turning it on, otherwise it is likely to burn the motherboard. >>>More
To shut down.
If the hands-on ability is okay, you can remove the back shell and dry it with a hair dryer. >>>More
It should not be scrapped, only the battery is completely depleted. Water ingress into the mobile phone must be treated as follows before it can be turned on: >>>More
Now that I've started using it, then it's fine, don't worry.