If the phone was overheating you would see a pop up warning of that @scrumpy1973
Please try these troubleshooting steps >
- Reboot your phone by turning it off and on and recheck any relevant settings.
- Clear Cache Files from the phone's System Partition Section > https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/ You may need to insert your earphones or hook upto a powered On Laptop or use a Tv's USB Port to access the Clear Partition Section. This may help with lag or stutters as this clears the phone of old/unused or broken cache files.There is also a Repair Apps option in the Menu System too { Possibly excluding the s²⁴ Series of phone's }
- Run the phone's Diagnostic Tool in your Samsung Members App and if that does not help then a back up followed by a factory reset maybe the last resort before letting a Samsung Service Centre have hands on.
If i can be of any further help please don't hesitate to ask 😎
Daily Driver > Samsung Galaxy s²⁵ Ultra 512Gb ~ Titanium Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "