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Apple iPhones iPhone 15 Overheating: How to Fix It Yourself

This is a common issue with Apple iphones and can usually be resolved with some basic troubleshooting. Before spending money on a repair, work through these steps — most people can fix this problem themselves.

Medium5-20 minutesParts: $0-$15

Tools Needed

Toothpick or SIM eject toolFlashlightMicrofiber cloth

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⚠️ Safety First

  • Power off your iPhone before attempting any physical repair.
  • Be gentle with all connectors and ports — the internal components are delicate.

Before You Start

Parts You May Need

Thermal Fuse

~$5-$12

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Step-by-Step Repair

  1. Step 1 of 6
    1

    Power cycle the device

    Turn off your Apple iPhone completely. Unplug it from the power source if applicable. Wait 2-3 minutes, then plug it back in and turn it on. This clears many temporary glitches.

    Power cycle the device
  2. Step 2 of 6
    2

    Check the basics

    Verify all connections are secure — power cords, cables, hoses, and accessories. Make sure the device is on a stable, level surface and has adequate ventilation.

    Check the basics
  3. Step 3 of 6
    3

    Clean accessible components

    Clean all user-accessible parts — filters, vents, ports, and surfaces. Built-up dirt and debris cause a surprising number of device problems.

    Clean accessible components
  4. Step 4 of 6
    4

    Inspect for visible damage

    Look the device over carefully for cracks, frayed wires, bent pins, worn gaskets, or other visible damage. Take note of anything unusual.

    Inspect for visible damage
  5. Step 5 of 6
    5

    Reset to factory defaults if applicable

    If your device has a reset option, try it. Check the manual or manufacturer's website for the specific reset procedure for your model.

    Reset to factory defaults if applicable
  6. Step 6 of 6
    6

    Test again and document results

    After troubleshooting, test the device. If the problem persists, write down exactly what happens — this information helps a technician diagnose the issue faster.

    Test again and document results

If That Didn't Work

  • Try a hard restart: quickly press Volume Up, Volume Down, then hold the Side button until you see the Apple logo.
  • Check for a pending iOS software update that may fix the issue.
  • Reset all settings (Settings > General > Transfer or Reset > Reset All Settings) without losing data.

When to Call a Professional

If software troubleshooting doesn't fix it, you may need a hardware repair. Apple charges $80-$300 depending on the issue. Third-party repair shops typically charge 30-50% less. If your phone is over 3 years old, compare repair costs to a refurbished replacement.

Related Guides

Disclaimer: This guide is for informational and educational purposes only and does not constitute professional repair advice. All repairs are performed at your own risk. RepairItFree.com is not liable for any personal injury, property damage, device damage, voided warranties, or other losses resulting from the use of this information.

If you are unsure about any step — especially anything involving electricity, gas, water, or refrigerant — stop and consult a qualified professional. Your safety is more important than saving money.

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