If your Nothing Phone (3) feels unusually warm, it's often a sign of the hardware working hard or a software process running in the background. A little warmth during fast charging or intense gaming is normal, but if it's consistently hot during light use, a few adjustments can usually cool things down.
Start by closing all your recent apps. Swipe up from the bottom and hold, then swipe each app window away. Next, give your phone a quick restart. Press and hold the Volume Down and Power buttons together for about ten seconds until the Nothing logo appears. This clears out any temporary glitches that might be causing a processor strain.
Check for Rogue Apps and Background Activity
Sometimes, a single misbehaving app is the culprit. Head to Settings > Battery and look at the battery usage graph. If an app is using a high percentage despite you not actively using it, that's a prime suspect.
Tap on that app and select Restrict background activity. You can also force stop it from the same menu. For social media or messaging apps known to run in the background, I'd go into Settings > Apps, select the app, and tap Battery > Restricted to prevent it from refreshing constantly.
Adjust Your Display and Performance Settings
The gorgeous display is a major power user. Try reducing the screen refresh rate. Go to Settings > Display > Refresh rate and switch from 120Hz to 60Hz. You can also lower the screen brightness manually or ensure adaptive brightness is on.
Nothing OS offers different performance modes. Navigate to Settings > Battery > Performance mode. Switching from 'High Performance' to 'Balanced' or 'Power Saver' can significantly reduce heat by limiting the CPU's top speed. Power Saver mode is great for when you just need the basics.
Be Smart About Charging and Connectivity
Fast charging generates heat. If your phone is hot while plugged in, try using a standard charger instead of the 65W fast charger for a while. Also, avoid using the phone intensively while it's charging, especially for gaming or video calls.
Wireless charging, especially at the full 15W, also produces warmth. Take the phone off a Qi2 or MagSafe charger if it feels too hot. I've found that using the official Nothing charger often manages heat better than third-party options, as it's optimized for the phone's power management.
Connectivity features like GPS, Bluetooth, and mobile data searching for a signal can all contribute. Turn off Bluetooth and GPS when you're not using them. If you're in an area with poor cellular signal, your phone works harder, so switching to Wi-Fi or even Airplane mode temporarily can help it cool down.
Update Your Software and Manage Your Environment
Always ensure you're running the latest version of Nothing OS. These updates frequently include optimizations for battery and thermal management. Check for updates in Settings > System > System update.
Your physical environment matters. Don't leave your Phone (3) in direct sunlight, like on a car dashboard. Similarly, using it while it's tucked under a pillow or blanket traps heat. A protective case is recommended, but some very thick cases might insulate a bit too much. Try removing the case for a few minutes if the phone is hot to see if it cools faster.
Identify Intensive Tasks and Give It a Break
Understand that certain activities will naturally warm up the device. Recording extended 4K video, playing graphics-intensive games for long sessions, or using AR apps push the processor and GPU. This is normal, but giving the phone a short break during these sessions can prevent it from getting uncomfortably hot.
If the overheating is sudden and severe, and the phone feels hot even when idle after a restart, it's worth considering a factory reset as a last resort. Make sure you back up everything important first through Google One or your preferred method. You can initiate this from Settings > System > Reset options > Erase all data (factory reset).
