A phone that gets uncomfortably warm is not just annoying, it can drain your battery, throttle performance and, over time, shorten the life of the device. The good news is that most overheating has a clear cause and a simple fix. Here is how to cool things down.
Everyday causes of a hot phone
- Direct sun and hot cars. Leaving a phone on the dash in a Newcastle summer will heat it fast. This is the most common and most avoidable cause.
- Heavy use. Gaming, video recording, GPS navigation and video calls all push the processor hard and generate heat.
- Charging while using. Fast-charging and running demanding apps at the same time stacks two heat sources together.
- Too many background apps. Apps refreshing and running in the background keep the processor busy even when the screen is off.
- A thick case trapping heat. Some heavy cases stop the phone shedding warmth during charging.
Quick fixes to try today
- Take the phone out of direct sun and let it cool in the shade before using it again.
- Close demanding apps and restart the phone to clear background processes.
- Remove the case while charging if the phone runs hot.
- Turn down screen brightness and switch off features you are not using, such as location or hotspot.
- Update your apps and operating system, since a misbehaving app or bug can cause runaway heat.
When heat means a hardware problem
If your phone overheats even during light use, or gets hot while just sitting idle, the cause may be internal. A failing or worn battery is a frequent culprit, and heat plus a swelling back is a safety issue that needs prompt attention. Some newer flagships also run warmer under load due to their chip and modem design, which makes good charging habits and a decent case even more worthwhile.
| When it gets hot | Likely cause | Action |
|---|---|---|
| In sun or hot car | Environment | Cool it down, avoid heat |
| During gaming or navigation | Normal heavy load | Take breaks, remove case |
| While charging and using | Stacked heat sources | Do one at a time |
| Idle or light use | Battery or hardware fault | Get it checked |
Why you should not ignore it
Sustained heat is hard on the battery and internal components. A battery that keeps overheating can swell, which is a safety risk and should never be ignored. Catching a failing battery early is cheaper and safer than waiting for it to fail completely.
Get the heat sorted
If your phone runs hot without a clear reason, we can test the battery and internals and tell you exactly what is going on. Call our Cardiff workshop on 02 4072 2285 or drop in for a check. See all our services on the Phone Repairs Newcastle homepage. We serve Newcastle, Charlestown, Kotara and the wider Hunter.
Frequently Asked Questions
Why does my phone get hot even when I’m not using it?
Idle overheating often points to a failing battery, a misbehaving background app, or a hardware fault. If restarting and closing apps does not help, have the battery checked.
Is it bad to use my phone while it charges?
Doing heavy tasks while fast-charging stacks two heat sources and can make the phone hot. Occasional light use is fine, but avoid gaming or video recording while charging.
Can overheating damage my phone?
Yes. Sustained heat shortens battery life and stresses components, and a battery that overheats can swell, which is a safety risk that needs prompt repair.
Should I remove my case if my phone overheats?
It can help, especially while charging, as some thick cases trap heat. If the phone still overheats without the case, the cause is likely internal.
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