The cause can be a bug in the software. Try to press and hold the volume down + power button till the phone shows a Samsung logo (around 10-15 seconds). Let me know if it did work for you.
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=== Update 07/22/2023 ===
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If it does not work, you may need to remove the back glass and disconnect the battery. Here is how: [guide|148256][br]
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Also, stop at step 14. Disconnect the battery, and connect it back. Let me know if it works for you.
Hello @shwanakamal[br]
[br]
The cause can be a bug in the software. Try to press and hold the volume down + power button till the phone shows a Samsung logo (around 10-15 seconds). Let me know if it did work for you.