Troubleshooting Guide: How to Fix iPhone 6 Won't Turn On Issue - iKream
iPhone 6 Won't Turn On? Here's What You Can Do About It
iPhone frozen? How to force restart and fix it | Asurion
How to Solve the Problem of 'iPhone 6s Battery Won't Charge'?
⚠️ PROBLEM! IPHONE 6 BROKEN: even if i keep pressing the power button it doesn't turn on, it just keep showing me that icon of low battery (despite it's in charge) :