After update to one ui 3.1 I had factory data rest and everything work fine but after I update Google play system the phone become heating up especially when play games ever with low graphics games
Dear Samsung Member,
Greetings from Samsung Customer Support!
Please visit this mentioned link to resolve your device heating issue: https://www.samsung.com/in/support/mobile-devices/why-the-device-heats-up-during-use/
For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).
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Samsung Customer Support