Well the problem is you most likely didn't replace it effectively so now in return your phone will not turn on. To troubleshoot it you must hold down the volume key and the power button at the same time for 15 to 20 seconds. I know many people who have this same problem who this worked for so I hope it works out for you
People are telling me that if you are have problems troubleshooting your device that to use a car charger is efficient I haven't tried it but I'm just passing on the suggestion hope it is helpful to anyone