My father in law has a Samsung A51 and it won't charge, last year I changed the charging port and it worked fine, after that he brought it to me again and I had to get a new battery and it worked fine for a couple months, he brought it to me yesterday, he said his dog knocked it to the floor and now it won't charge, I have took it apart took battery out checked charging port for dirt and put it back together to try and charge, no luck. I have tried holding down the power button and also holding power button and up and down button still nothing. I left it on charger all night and it still won't charge, can anyone help me.