Hello and sorry for the trouble that you are having. Please try the steps below in this EXACT order. Remove the battery and SIM (if you have on, varies by carrier) from the phone and wait 20 seconds, then, with the battery still out, plug it into your wall charger, then place the battery and SIM back in and turn the phone back on.
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Please let me know if you need any additional assistance. Please click Accept to close out the question and so I get credit for it. Thank you so much!!