Samsung Galaxy S9 is getting very hot – Solution

Have you noticed that your Samsung Galaxy S9 is getting much warmer or hotter than usual? This is usually the case when you play games, watch videos or quickly charge your Galaxy S9.

If this is the case with your Galaxy S9, this manual will help you to solve the problem of getting hot.

The battery of the Samsung Galaxy S9 shows a defect

To check this we recommend that you load the app "Phone Info" onto your phone. This is diagnostic software for Samsung. If you have installed the app on the Samsung Galaxy S9, switch to the "Monitor" tab.

Here you will be shown the current battery temperature and the processor temperature. If the battery temperature is much higher than the processor temperature, this does not mean anything good.

Turn off your Samsung Galaxy S9 and wait about 10 minutes.

Place the unit in a cool place. Now perform the test with “Phone Info” again and observe how the values change. If the battery temperature should still be higher than the processor's, then this is defect and should be replaced.

If the CPU temperature is constantly higher, this has to do with a software or app.

Software responsible for extreme heat

First check whether the latest firmware is installed on the Samsung Galaxy S9. If a new firmware is available, please install it. As a rule, system applications that are tugging at performance will be optimized and thus the smartphone will not get so hot even then.

A firmware update has been performed, but no Wipe Cache partition or factory reset.

Since not all data of the old system is deleted during a firmware update, it can lead to computationally intensive overlaps, which then lead to the heat development of the Samsung Galaxy S9 CPU.

Solution: Performing a factory reset or Wipe Cache partition

Samsung Galaxy S9 can't go into the deep sleep because an app permanently demands the CPU

Here you can see by means of the device maintenance which apps constantly request computing power from the CPU.

Navigate to it in:  

  • Settings --> Device maintenance --> Battery --> Battery consumption

If there is an app here that consumes a lot of power, it could be the cause of the S9 getting hot.

Deactivate Quick Charge If the phone gets very hot, especially during charging

Please deactivate the Quick Charge function, as this is responsible for 90% of the time. We have summarized here how this works for you:  

  • Switch off the fast charging of the battery on the S9 and the S9 Plus.

You now know what to do when your Samsung Galaxy S9 gets extremely hot and what could be the cause. We hope that the problem has already been solved by a Wipe Cache partition.

 



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