Specifications

iPhone 4 Symptom Charts — Software Issues 53
2012-02-21
Software Issues
Unexpected Freeze/Restart/Power O, “Connect to iTunes”
Known-Good Parts & Materials Required: USB Power Adapter, Dock Connector to USB Cable,
computer running the latest version of iTunes with a known-good USB port
Quick Check
Symptoms Quick Check
• Freezes
• Frozen on-screen image
• Frozen Apple logo
• Frozen low-battery image
• “Connect to iTunes” image (at
left)
• Unexpectedly restarts
• Unexpectedly powers o
1. Force quit frozen app.
2. Try to restart the device.
3. Try to reset the device.
Deep Dive
Check Result Action
1. Verify device status.
Plug the device into a known-
good power adapter and cable
to charge the battery. Allow up
to 2 minutes for the device to
respond.
Identify if device woke up to
the “battery trap” image (at left)
or to an iOS screen, such as:
• “slide to unlock”
• Apple Logo (startup)
• “connect to iTunes”
Did the device wake to
“battery trap” or to an iOS
screen?
Battery
Trap
Go to step 2.
iOS Screen Go to step 3.
2. Continue charging.
Charge the device for up to an
additional 10 minutes.
After 10 minutes, did the
device wake to an iOS screen?
Yes Go to step 3.
No Determine if the issue is caused by
accidental damage. Refer to the Visual
Mechanical Inspection guidelines.