Galaxy S24 Overheating: How To Fix A Hot Phone (2026)
A Galaxy S24 that runs hot, dims the screen or slows down is usually reacting to heavy use, charging or a software hiccup.
The fixes below follow Samsung’s own heat guidance and start with the quickest ones.
Most people can sort this out in about 15 minutes, and the last sections cover when to book a repair in 2026.
Why is my Galaxy S24 overheating?
| Trigger | When it happens | First fix |
|---|---|---|
| Heavy apps and games | Long gaming or video sessions | Take breaks and close background apps |
| Charging | Fast or wireless charging | Unplug, close apps, let it cool |
| Setup or restore | New phone, large downloads, heavy syncing | Wait for syncing to finish |
| Weak signal or hotspot | Roaming, hotspot, poor coverage | Turn hotspot off or move to better signal |
| Heat around the phone | Sun, hot car, heaters | Move it somewhere cool |
Samsung says warmth during use is normal, so the goal is to stop the phone getting hot when it should not.
What do the temperature warnings mean?
Samsung describes two warning levels, and the exact messages vary by model.
If you see either warning, stop using the phone until it cools down.
| Warning | What the phone does |
|---|---|
| First warning | Limits brightness and performance, stops charging, closes running apps, and limits calls and other features except emergency calls |
| Second warning | Turns the phone off, and an emergency call in progress is not disconnected by the shutdown |
Samsung says this protection exists only on supported models and the message wording varies.
Step 1: install the latest software update
Go to Settings → Software update → Download and install and follow the prompts.
Samsung started the stable One UI 8.5 rollout in May 2026, and the S24 Ultra and S24 FE builds reached US carrier-locked phones around May 16.
If your S24 or S24+ does not show the update yet, check again in a few days because rollouts arrive in waves.
Step 2: restart the phone
A restart clears app conflicts that keep the processor busy.
Do this before anything else if the phone suddenly got hot while idle.
Step 3: stop background activity
- Close power-hungry apps: swipe away anything you are not using.
- Turn off radios: switch off Wi-Fi, GPS and Bluetooth when you do not need them.
- Remove unused apps: delete apps and files you no longer use.
- Run Device care: open
Settings → Device care → Optimize nowto close background apps and scan for problems.
The menu is called Device care on Samsung’s support page, and the name can differ slightly between One UI versions.
Step 4: lower brightness and refresh rate
A bright, fast display uses more power and makes more heat.
- Open Settings → Display.
- Turn brightness down.
- Set Motion smoothness or refresh rate to Standard.
Samsung notes that higher refresh rates look smoother but cost more power.
Step 5: fix charging heat
Charging is one of the most common reasons an S24 gets hot.
- Unplug first: close running apps and let the phone cool before charging again.
- Check the cable and port: a damaged cable or debris in the charging port can cause heat.
- Wireless charging: keep metal objects, magnets and magnetic stripe cards out of the gap.
For more on this symptom, see Galaxy overheating during fast charging.
A damaged charging port, or one exposed to liquid, dust, metal powder or pencil lead, is another heat source Samsung lists.
Do not use a cable with damaged or peeling covering, or any damaged charger.
Does your S24 chip matter?
| Model | US, South Korea, China | Other markets |
|---|---|---|
| Galaxy S24 | Snapdragon 8 Gen 3 | Exynos 2400 |
| Galaxy S24+ | Snapdragon 8 Gen 3 | Exynos 2400 |
| Galaxy S24 Ultra | Snapdragon 8 Gen 3 | Snapdragon 8 Gen 3 |
The chip does not change the steps above, but it explains why two S24 owners can report different behavior.
Do magnetic phone coolers help?
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A clip-on or magnetic cooler can help during long gaming or streaming sessions, but it will not fix a software bug.
Make sure the cooler’s magnet or clip fits your phone and case before you buy.
WHYNOTRY 50W magnetic cooler: a magnetic cooler with an RGB light.
Comvin magnetic cooler: a semiconductor-style cooler with a magnetic mount.
Black Shark magnetic cooler: a semiconductor cooler from a gaming-phone brand.
Which surroundings make the phone hotter?
- Sun and cars: avoid long exposure to direct sunlight and do not leave the phone in a hot car.
- Heat sources: keep it off electric heating mats and away from heaters, microwaves and hot cooking equipment.
- Extreme temperatures: do not store it somewhere very hot or very cold.
- Heavy data use: hotspot, tethering, roaming and weak signal can all add heat.
- Setup and syncing: restoring data, large downloads and heavy cloud or email syncing run the processor harder.
When should you reset or contact Samsung?
If the phone still overheats after the steps above, try a factory reset at Settings → General management → Reset → Factory data reset.
If it still runs hot with no apps open, or shows repeated temperature warnings, the problem may be hardware.
Samsung’s page suggests sending an error report through the Samsung Members app and booking a repair through its support pages.
How do you check warranty before booking a repair?
- Open samsung.com/us/support/warranty.
- Choose the Phones, Tablets and Wearables category.
- Enter your model number plus the serial number or IMEI.
Samsung’s US page lists a 1-year limited warranty for smartphones, and you can start a chat at samsung.com/us/support/contact.
Related Galaxy fixes
If the heat comes with a draining battery, read Galaxy S24 battery drain after an update.
For other S24 problems, see Galaxy S24 keeps rebooting and Galaxy overheating while gaming.
Official references: Samsung on what to do when your phone heats up and GSMArena on the One UI 8.5 rollout for S24.
Hi .
One year ago I bought a Samsung s24 it is the second time that I have taken it to the shop but they are saying that you have damaged the phone but I promise that it does not drop down. I have paid 1640 dollars, what can I do?