Specifications

iPhone 4 Symptom Charts — Power Issues 38
2012-02-21
Battery Life Too Short
Known-Good Parts & Materials Required: USB Power Adapter, Dock Connector to USB Cable,
iOS diagnostics
Quick Check
Symptoms Quick Check
• Battery runs out of power very
quickly
• Battery does not hold a charge
• Short play time
1. On the device, go to Settings > General >
Software Update to verify device has the most
up-to-date software. If unavailable, verify by
plugging the device into iTunes.
2. Suggest www.apple.com/batteries/iphone.
html as a resource for the user to learn about
optimizing battery settings.
Deep Dive
Check Result Action
1. Diagnose battery condition.
Use diagnostics to verify the
battery condition.
Is the battery condition
“normal’?
Yes Go to step 2.
No Determine if the issue is caused by
accidental damage. Refer to the Visual
Mechanical Inspection guidelines.
Replace the device’s battery, if possible,
rather than replacing the whole unit.
2. Diagnose usage/standby time.
Use diagnostics to determine
usage and standby time. If
these times are the same, it
points to a corrupt system
process running in the
background that is draining
power.
Are usage times and standby
time the same duration?
Yes Restore the device using the latest
version of iTunes. If restore fails,
attempt DFU restore.
Warning: This will delete all user data
on the device.
No Go to step 3.
3. Diagnose unsupported apps.
Use diagnostics to determine
any apps that are unsupported
on the device.
Are there unsupported apps
listed?
Yes Restore the device using the latest
version of iTunes. If restore fails,
attempt DFU restore.
Warning: This will delete all user data
on the device.
No Go to step 4.