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An overheating OnePlus phone is not just uncomfortable during a call; it can reduce battery health and slow down your phone. Reasons often include background app overload, old firmware, poor signal reception, or prolonged calls. Resolving this problem involves practical strategies such as cleaning background processes, updating software, and managing call settings.
This issue also requires checking the apps’ power consumption, inspecting battery health, and considering OnePlus diagnostics to find the root cause. If the issue persists, it may indicate a hardware problem that needs special attention from a OnePlus phone repair expert.
Solutions to Fix OnePlus Phone Overheating
Try these solutions to fix phone overheating:
1: Remove the Phone Case Temporarily
Phone cases can trap heat, especially during long calls, as your OnePlus device’s processor works harder to maintain connectivity. Remove the case temporarily during calls to allow heat to dissipate naturally. Opt for cases with heat vents or lightweight materials if your environment is consistently warm.
2: Close Background Apps Before a Call
Multiple apps running in the background consume CPU and RAM, which can lead to overheating during calls. Before making or receiving a call:
- Tap the Recent Apps button.
- Close all non-essential apps.
- Avoid gaming or using heavy apps immediately before calling.
This frees resources for your OnePlus to handle call processing without straining the processor.
3: Update OxygenOS and Apps
Outdated firmware or apps can cause background processes to malfunction, leading to power spikes during calls. To ensure stability:
- Navigate to Settings > System > System Updates and install any pending updates.
- Open Google Play Store > Manage Apps & Device > Updates Available and update all apps.
OnePlus frequently releases thermal management improvements in OxygenOS updates, which can directly address overheating issues during calls.
4: Switch to a Stable Network Connection
Weak signal forces your OnePlus to boost antenna power during calls, causing heating. To reduce strain:
- Use Wi-Fi calling if available.
- Avoid making calls in low-signal areas.
- Check your SIM card positioning to ensure proper contact.
- Switch network mode to 4G only under Settings > Wi-Fi & Network > SIM & Network if your 5G connectivity is unstable.
Stable connectivity helps your phone maintain lower power consumption during calls.
5: Reduce Call Duration
Prolonged calls increase power usage, leading to heat buildup. Where possible:
- Keep calls under 30–40 minutes.
- Take breaks during long calls to allow your phone to cool.
- Use headphones to keep the device away from your hand, allowing better heat dissipation.
6: Lower Screen Brightness During Calls
If you keep your screen on during calls (for notes or multitasking), high brightness can generate heat. Swipe down from the top to lower brightness, or enable Adaptive Brightness under Settings > Display > Adaptive Brightness.
7: Check Battery Health
A degrading battery can overheat during calls due to increased internal resistance. Check your battery status using:
- Dial *#*#4636#*#* for device information on some OnePlus models.
- Use the OnePlus Care app for battery diagnostics.
- Look for sudden battery draining or swelling.
If your battery is faulty, replace it promptly to prevent damage to other internal components.
8: Disable Unnecessary Features During Calls
Certain features can add unnecessary load during calls. Before a long call, disable:
- Bluetooth if not using a headset.
- GPS, if not needed.
- Mobile hotspot.
- High-performance mode (if enabled under Battery Settings).
These actions reduce background activity and minimize heat generation during calls.
9: Use OnePlus Diagnostic Tools
OnePlus devices come with built-in diagnostic tools. To check for issues:
- Open the OnePlus Diagnostic app or use Dial *#808# on supported devices.
- Run hardware tests for the processor, battery, and thermal sensors.
- If the test indicates abnormal temperature readings, it may suggest a failing component that needs inspection.
10: Perform a Soft Reset and Cache Wipe
Residual cache and background system errors can lead to thermal throttling:
Soft Reset: Hold the Power button for 10–15 seconds until the device restarts.
Wipe Cache Partition:
- Power off your phone.
- Hold Power + Volume Down until the OnePlus logo appears.
- Select English > Wipe Data and Cache > Wipe Cache.
- Reboot the device
This can clear unnecessary files, stabilizing your phone’s performance during calls.
11: Check for Background Apps Consuming Resources
Apps with background call recording, syncing, or heavy data transfer can overwork your processor during calls. Go to:
- Settings > Battery > View Detailed Usage to find apps consuming power during calls.
- Uninstall or force-stop apps with unusually high CPU or battery usage while on calls.
12: Avoid Charging While on Calls
Charging your OnePlus while on a call significantly increases heat, as the device is simultaneously drawing power and running high-power-consuming processes. Wait until after the call to charge your device to prevent additional heating.
Conclusion
Practical steps are required to solve phone overheating during calls: removing the case, closing background apps, and updating software. Moreover, keeping calls short also helps. Additional measures, such as checking battery health and wiping the cache, can further reduce overheating. Avoid calling when the phone is charging, and monitor apps with high power consumption to prevent the phone from overheating. If these solutions don’t work, it’s time to seek help from a professional OnePlus phone repair expert.
