wont charge, accessory not supported

Hi, phone stopped charging. replaced battery, lead power source, and lightning/mic port. phone powers up everything works. plug in various chargers genuine apple products, aftermarket products same thing every time wont accept charger. eventually battery run out, getting another delivered monday. Has anyone any ideas?!?!? saw on another thread something about a capacitor near the battery connector that is liable to fail but can no longer find the thread. any help very much appreciated