Replacing iphone 4s battery. Great do it yourself project.

My Problem

Battery was not holding charge for very long at all.

My Fix

Easy. Took 5 minutes after backing up the phone.

My Advice

I placed the phone in airplane mode before shutting it down for the replacement. I had no problems connecting to the phone service after the replacement.

I also used the tool to loosen the battery before disconnecting the battery connector to prevent the sudden release of the battery from dislodging the pressure contact.