I-phone 7 battery

smdan444 Said:

"I-phone 7 battery: Can I change the battery in my I-phone 7 myself it won't charge and won't turn on"

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Seems you Have a Dead Battery:

So, Get this iPhone Serviced, ASAP:

To go through Apple, setup a Genius Bar Appointment at your local Apple Store, taking it in for service. There, it will be diagnosed, and you'll be provided with a cost. or see an AASP (Apple Authorized Service Provider) in your local area.

Contact Apple:

• Contact Us - Choose Locations
• Proceed from there as Necessary

Or...

Contact an AASP: 

1. Go Here: Find Locations - Apple Authorized Reseller
2. Click: Service & Support
3. Enter: your location information
4. See: if there is an AASP nearby
5. Contact: an AASP that shows up, and find out more about the services that they offer to fix the iPhone