Specifications

iPhone 4 Symptom Charts — Mechanical Issues 51
2012-02-21
3. Restore with iTunes.
Restore the device using
the latest version of iTunes.
If restore fails, attempt DFU
restore.
Is the temperature issue
resolved?
Yes Issue resolved.
No Determine if the issue is caused by
accidental damage. Refer to the Visual
Mechanical Inspection guidelines.
Burnt Smell/Odor
Known-Good Parts & Materials Required: none
Quick Check
Symptoms Quick Check
• Unusual burnt smell or odor 1. Disconnect all accessories or 30-pin connections
from the device.
Deep Dive
Check Result Action
1. Check for safety issue.
Determine whether there is
a safety issue, such as fumes,
excessive heat, or shock. Do not
perform procedures that can
be a safety risk to you or the
user.
Can you proceed safely?
Yes Go to step 2.
No Determine if the issue is caused by
accidental damage. Refer to the Visual
Mechanical Inspection guidelines.
Escalate per safety procedures if user
claims injury.
2. Identify odor source.
Determine the source of the
odor.
Is the odor coming from the
device or an accessory?
Device Determine if the issue is caused by
accidental damage. Refer to the Visual
Mechanical Inspection guidelines.
Accessory Advise user to discontinue use of the
accessory. Replace Apple accessory. If
user has a third-party accessory, refer
to manufacturer for support.