need help with galaxy s8 power button - Android Q&A, Help & Troubleshooting

Hello everyone
I have strange problem that im trying to solve without resetting my device.
After installing SideSync on my s8,power button got messed up. It wont turn screen off,the button itself is working fine i can press and hold it to restart the phone or to wake screen up,but it just wont turn screen off...
any ideas what can i do about that? im not rooted,all stock.
Edit:
Problem solved by factory reset.

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Sounds like your power button is faulty.

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