The phone is not charging

@joshuasakyi first check your charger. Make sure it provides the proper voltage for you phone. Next check the charging cord. Make sure that the connector has no bend, broken or corroded pins. If that all looks ok, check the charging port on your phone. Clean it with a few drops of isopropyl alcohol and a few puffs of compressed air. If all of those is good, It is time to disassembly your phone and replace the battery. Use something like this video to do so. Last thing to do would be to check the charging port and possibly replace it. Check this video about how that is done. Anything after that will be an issue with the motherboard and the PMIC circuitry. You can check that by connecting a USB ammeter to your phone and see if your phone even tries to charge,