Specifications

iPhone 4 Symptom Charts — Software Issues 55
2012-02-21
Alert Messages on Device or in iTunes
Known-Good Parts & Materials Required: Dock Connector to USB Cable, computer running
the latest version of iTunes with a known-good USB port
Quick Check
Symptoms Quick Check
• “Use iTunes to Recover”
window
• Alert/error messages on the
device
• Alert/error message in iTunes
1. Read the alert to determine the issue. Many
alerts provide additional information or links to
resolve the issue. Refer to Apple Support article
TS1275: iOS: Resolving update and restore alert
messages.
2. Restart the device.
3. 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.
Deep Dive
Check Result Action
1. Inspect dock connector.
Verify that the dock connector
is clean and free of debris or
damage. Clean or x if possible.
Is the dock connection clean
and free of damage?
Yes Go to step 2.
No Determine if the issue is caused by
accidental damage. Refer to the Visual
Mechanical Inspection guidelines.
2. Erase all content and settings.
Go to Settings > General >
Reset > Erase All Content and
Settings.
Warning: This will delete all
user data on the device.
Is the issue resolved?
Yes Issue resolved.
No Go to step 3.
3. Restore with iTunes.
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.
Is the issue resolved?
Yes Issue resolved.
No Determine if the issue is caused by
accidental damage. Refer to the Visual
Mechanical Inspection guidelines.