Specifications

iPhone 4 Symptom Charts — Sound Issues 71
2012-02-21
3. Restore with iTunes.
Restore the device using
the latest version of iTunes.
If restore fails, attempt DFU
restore.
Go to Settings > Sounds >
Ringtone and select a ringtone.
Does the device ring?
Yes Issue resolved.
No Determine if the issue is caused by
accidental damage. Refer to the Visual
Mechanical Inspection guidelines.
No Vibrate
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
• No vibrate 1. Toggle the ring/silent switch.
2. Check Vibrate settings for both Silent and Ringer/
Alerts in Settings > Sounds.
3. Restart the device.
4. 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. 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.
Toggle the ring/silent switch.
Is the vibrate issue resolved?
Yes Issue resolved.
No Go to step 2.