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Why Your Android Phone Is Overheating And How To Fix It
Overheating has been a constant problem for smartphones since the earliest models hit the market, due to their advanced CPU and GPU systems. Despite some Android phones being equipped with adequate internal and external cooling solutions, they can still be prone to excessive heating. Luckily, there are some solutions to prevent overheating from happening.
Temporary memory, or RAM, is a limited resource that frequently needs to be cleaned up to prevent excess heating. Open the Recent Pages by tapping the square Overview button and swipe the task windows individually or select the Clear All button to close the background tasks, freeing up more RAM space on your Android device.
Some overheating issues come from Android services that operate independently and persistently in the background. You'll need to go into Enable Developer mode to access Running Services. To do this, enter into the Settings app, choose About Phone, and tap on Build Number several times until the message "You are now a developer" appears.
While in Developer mode:

1. Go to the main settings page > System > Developer Options > Running Services.

2. Look for any unfamiliar apps or resource hogs. Tap Stop to end the app.
3. You can also look for suspicious activity by tapping on the horizontal dots and choosing Show Cached Processes.

4. End any suspicious third-party apps by tapping Stop.
An app with too much battery usage might need to be restricted:

1. Go into Settings and tap Battery.

2. If a warning appears, tap it, then tap the Restrict option. If not, check each app individually.

3. Choose an app. Tap Battery, Background Restriction, and then Restrict.
If your phone is still hot after restricting a few apps, turn on your general Battery Saver mode by selecting the option from the main Battery menu in Settings. You can also force-stop those demanding apps by going into Apps & Notifications in Settings, then choosing the app you want and tapping Force Stop to end the program, or tapping Uninstall to get rid of it entirely.
Other factors, such as heavy WiFi or mobile data transfers and faulty chargers, might be affecting your devices. If the previous solutions haven't worked, you may need to take additional steps like using your Android phone's original charging peripherals, avoiding playing games, or even turning the whole device off for a while.