Skip to main content
« Back to All Stories

A Good Discovery and Decision

Brent Meyer -

iPhone 4

iPhone 4 Battery Replacement

iPhone 4 Battery Replacement

30 minutes

Moderate

My Problem

Three issues. 1) My phone battery would last 12-16 hours without phone use. 2) Signal strength would drop to 1 bar from 5. 3) Phone would get hot during charging and use.

My Fix

I followed the installation instructions for disassembly and noticed that the foam insulator on the battery terminal had shifted and could have been providing a high impedance short (the back of my phone would get warm and the charge would last 12 hours). I tried to reposition the foam but it would not stay put so I cut two ¼” X ¼ ” pieces of electrical tape to replace the foam. I also reformed the antenna spring to ensure it made positive contact. Following this I used some isopropyl alcohol to clean the entire rear cover and the mating surfaces on the phone then reassembled per the video and instructions and performed a battery calibration.

It has been two days and I have recorded 40 minutes of talk time and some minor web surfing and I have 75% charge left.

My Advice

Check the battery terminal insulator, clean all mating surfaces with alcohol.

iFixit Opening Tool Image
iFixit Opening Tool

$1.99

« Back to All Stories

0 Comments

Add Comment