Chosen Solution
Two days ago I noticed when I connected my wall charger to my charging port on the phone that it.would connect show then a couple minutes later it will start vibrating and saying connect charger then it will charge like it’s engaging and disengageing
Try another charging cable first (if this wall charger has a cable together and can not be separated then try another wall charger). If that does not work then your charger port is most likely damaged and needs to be replaced. I would take it to a mobile phone repair shop that does charger port repairs.