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Hi and Welcome. My Name is Ashik and I look forward to assisting you today with your question. I’m sorry to hear you're having trouble. I know that can be frustrating. Hopefully, we can get this resolved quickly
You can soft reset or force reboot it. Press and hold down the Power button and Volume Down button at the same time for 10-20 seconds or until it shows the Samsung logo. This will force reboot it.
If that didn't work, then connect it to your computer with the charging cable and do the above reset while connected.
Please let me know if that didn't work, so we can continue troubleshooting.
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