Chosen Solution

I just replaced my iphone 6 screen for the second time and this time it won’t turn on at all. When i’ve tried to charge it there has been no vibrate and itunes doesn’t recognise it. I’m at a loss to as what went wrong as last time it went perfectly and i followed the exact same steps… Also, i know it’s not dead as it had battery life before turning off.

Try disconnecting the battery, holding down the home button for a few seconds to drain any residual power, reconnecting the battery and then hard reseting the phone (Power + Home until apple logo appears). I have found that this little trick works quite frequently.