iPhone Heating After iOS Update? Here’s How to Fix It (2026 Guide)

iPhone Heating After iOS Update?

Did your iPhone start heating up after an iOS update?
Many users notice their iPhone becoming warm or even hot shortly after installing a new iOS version.

👉 This is very common
👉 And in most cases, it’s not a hardware problem

Follow the steps below to cool down your iPhone safely.

Why iPhone Heats Up After an iOS Update

After an update, your iPhone performs many background tasks.

Common reasons include:

• System indexing after update

• Apps running heavily in the background

• Increased CPU usage

• Battery recalibration

• Settings changed during update

💡 These processes can cause temporary heating.

🔍 Quick Check Before Fixes

Before doing anything:

• Has it been less than 24 hours since the update?

• Does the phone heat up even when you’re not using it?

If yes, continue with the fixes below.

✅ Fix 1: Restart Your iPhone

Restarting clears background system tasks.

• Restart once

• Let the phone cool down for a few minutes

This simple step fixes overheating for many users.

✅ Fix 2: Update All Apps (Very Important)

Old apps can cause high CPU usage.

1. Open App Store

2. Update all installed apps

Apps not optimized for the new iOS version are a top heating cause.

✅ Fix 3: Check Battery Usage

Overheating and battery drain often happen together.

1. Settings → Battery

2. Check which apps are using the most power

If you also notice fast battery drain, read this guide:
👉 iPhone Battery Draining Fast After iOS Update – Fix It

✅ Fix 4: Reduce Background Activity

Limit unnecessary background usage.

• Turn off Background App Refresh

• Reduce location access for unused apps

• Disable unnecessary Bluetooth features

This helps lower heat quickly.

✅ Fix 5: Avoid Heavy Usage Temporarily

Right after an update:

• Avoid gaming

• Avoid video editing

• Avoid long video calls

Give your iPhone 12–24 hours to stabilize.

✅ Fix 6: Remove Phone Case Temporarily

Thick cases trap heat.

• Remove the case while charging or updating

• Place the phone on a cool surface

This helps heat escape naturally.

✅ Fix 7: Reset All Settings (Safe Option)

If overheating continues after several days:

1. Settings → General → Transfer or Reset iPhone

2. Tap Reset → Reset All Settings

⚠️ This does not delete data
It only resets system settings

❓ Is iPhone Heating After Update Normal?

Yes, especially during the first 1–3 days after updating iOS.

If heating:

• Reduces over time → normal

• Continues for more than a week → needs fixes

❓ Can Overheating Damage My iPhone?

Short-term warmth is safe.
However, constant overheating can:

• Reduce battery health

• Slow down performance

That’s why it’s best to fix it early.

Frequently Asked Questions

Why is my iPhone heating after iOS update?

Because iOS runs background tasks and apps may not be optimized yet.

How long does overheating last after iOS update?

Usually 1–3 days. Sometimes up to a week.

Does overheating affect battery health?

Yes, long-term heat can reduce battery lifespan.

Should I downgrade iOS because of heating?

No. Downgrading is rarely necessary.

Final Thoughts

iPhone heating after an iOS update is common and usually temporary. Restarting the phone, updating apps, and reducing background activity solve most cases.

👉 If heating happens together with battery drain, make sure to check the battery guide linked above.