Overview
Some warmth during heavy use, charging or setup is normal. Persistent heat — or the black 'temperature' warning that forces the phone to cool before you can use it — points to specific triggers you can control. This guide explains the normal from the concerning and how to bring the temperature down safely.
Symptoms you might see
- The phone becomes uncomfortably hot to hold.
- A temperature warning screen appears and the phone becomes unusable until it cools.
- The screen dims, charging pauses, or the camera flash is disabled.
- Performance slows noticeably when the device is warm.
Possible causes
- Direct sunlight or a hot car — the most common cause.
- Demanding tasks like gaming, navigation, video recording or AR.
- Charging while using the phone heavily, especially with a thick case.
- A runaway app stuck using the processor in the background.
- Restoring or setting up a device, which taxes the phone temporarily.
Step-by-step troubleshooting
Work through these in order — the earliest steps are the safest and fix the most cases.
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Remove it from heat immediately
Move the phone out of direct sunlight and out of hot cars. Never leave it on a dashboard. If it has a thick or insulating case, take the case off to let heat escape.
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Stop and unplug
Close demanding apps and stop charging while the phone is hot. Charging generates heat, so unplugging helps it cool faster.
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Let it cool naturally
Set the phone on a cool, flat surface in the shade. Never put it in a fridge or freezer — condensation can cause liquid damage. Wait until it returns to a comfortable temperature.
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Check for a runaway app
After it cools, open Settings › Battery and look for an app with unusually high 'Background Activity'. Update, force-quit or reinstall it. A misbehaving app can keep the processor busy and hot.
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Update the device software and apps
Overheating tied to a software bug is often fixed in an update. Install pending software and app updates once the phone is cool and charged.
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Reduce ongoing load
Lower brightness, turn off unused background refresh, and avoid graphics-heavy tasks in hot conditions. Enable Low Power Mode during heavy use in warm weather.
Before you go further: back up your device to a cloud backup or a computer whenever possible. Steps that could affect your data are clearly flagged — and for suspected hardware faults, a qualified repair professional is the safest next step.
Prevention tips
- Keep the phone out of direct sun and never leave it in a parked car.
- Avoid heavy gaming or navigation while charging.
- Use a case that doesn't trap heat during demanding tasks.
- Keep software updated to avoid heat-causing bugs.
Frequently asked questions
Is it bad if my device gets warm while charging?
Mild warmth during charging is normal. Hot to the touch, or a temperature warning, means you should unplug, remove the case and let it cool.
Can overheating damage my device?
Repeated high heat permanently reduces battery capacity and can stress components. Occasional warmth is fine; frequent overheating is worth addressing.
Related guides
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