Chosen Solution
I have an iPhone 6 that will NOT power on. Not even the apple logo. I’ve tried a new battery and Charing port. Although i cannot tell if the “new” battery is good or not. I’m still having problems trying to get it turn on. I’ve held the power button and the home button for over 20 seconds and no apple logo shows. Any more help, advice….
You’re on the right track–first rule out parts problems then rule out board problems. There are a handful of signature board level problems that can cause no power iPhone 6. To diagnose those you need a D.C. Power supply and a multimeter. Your first step is using your multimeter to confirm that your battery has sufficient charge–3.8v min as measured in voltage mode on the two outer pins of the battery
