Specifications

iPhone 4 Symptom Charts — Sound Issues 75
2012-02-21
3. 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.
Open the Voice Memos app.
Create a recording and play it
back.
Did audio record as expected?
Yes Issue resolved.
No Go to step 4.
4. Restore with iTunes.
Restore the device using
the latest version of iTunes.
If restore fails, attempt DFU
restore.
Open the Voice Memos app.
Create a recording and play it
back.
Did audio record as expected?
Yes Issue resolved.
No Determine if the issue is caused by
accidental damage. Refer to the Visual
Mechanical Inspection guidelines.