Iphone 4s keeps locking itself?

I have an iphone 4s about 4 months old. I'm a college student and I nanny for a living. Long story short one of the children managed to get ahold of my phone and dunk it in the toilet. I know my way around iphones pretty well as I have replaced the screens many times. Unfortunately, water did manage to set off the detector in my headphone jack so my warranty is now voided. The phone seems to work fine after leaving it in rice, the only thing is it keeps locking itself, screen shotting by itself, and the lock button is very sensitive. All I have to do is brush the top of it and it will lock. Its not terrible but its starting to get annoying. What can I do?!

If it keeps locking itself, you can try Tenorshare ReiBoot to fix it. Or you can try to set your iPhone to factory settings. Be sure to take down the important numbers and make a backup of your iPhone data before factory settings.

Refer to this to learn how to backup iPhone data

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