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The Samsung Galaxy S8 Active can be identified by model numbers SM-G892A (AT&T) and SM-G892U (T-Mobile and Sprint) and was released in August 2017. The Samsung Galaxy S8 Active is an Android smartphone produced by Samsung Electronics as the eighth generation of the Samsung Galaxy S series.

Samsung S8 active overheating

Everything turned on normally, heating at around 50°C on the motherboard whilst charging

here are the temperatures, hope y'all can help me

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Answer this question I have this problem too

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3 Answers

You need to open up the phone and see the component that causing the heat using a thermal camera. Sorry but I guess you need to take it to a technician.

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Heating more than normal while charging is a sign your battery needs replacing.

If the battery over heats, it will obviously heat a lot of other things since it covers a large area.

Do a battery test and see if that gives a clue.

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@jamesleebron connect an ammeter between your charger and your phone. See how many amps it is pulling. This can be an issues of the charging circuitry (bad PMIC, failed Battery controller etc.) Make sure that you have a good USB cable and that your charging port is in good working condition. Check the pins for corrosion etc. After that you will have to open it up and check for any damaged or disconnected components. A new battery is always advice but do not ignore the charging board Samsung Galaxy S8 Active I/O Daughterboard Replacement

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James lee bron will be eternally grateful.
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