How can I revive my dead phone?

[Budgie7622]

Dead phone

Hi all i hope someone can help i have a galaxy s4 that wont start it was working fine and then it turned off i thought it just needed charged but nothing blank screen no vibration nothing so i tried a new charger and lead still no joy tried a new battery nothing searched this forum and found a thread about the charging port so i bought a new port and fitted it myself nothing dead phone please could someone help as i cant survive without my phone

 

[B. Diddy]

Re: Dead phone

Welcome to Android Central! Possibilities include a faulty Power button, faulty motherboard, or incorrect replacement of the port. I'd bring it to a repair shop.