Hi There,
Thanks for reaching out and we completely understand your concern. It can be unsettling when your Surface device heats up quickly, especially when you're trying to manage it through the Surface app and the charging mode option isn’t showing up.
We appreciate you checking and sharing the details with us. Let’s go through a few things that might help.
Why You Might Not See the Charging Mode Option
Not all Surface models support manual control of Smart Charging. Even if your device supports it, the option may not appear due to:
A temporary glitch in the Surface app
Outdated app or firmware
Device-specific limitations
What You Can Try
Update the Surface App
Open the Microsoft Store, search for Surface, and install any available updates.
Restart your device and check the app again.
Wait a Few Seconds in the App
Sometimes the Smart Charging section appears a few seconds after the app loads.
Run the Surface Diagnostic Toolkit
Download it from this link.
It can help detect and fix firmware or battery-related issues.
Check for Windows and Firmware Updates
Go to Settings > Windows Update > Check for updates and install everything available.
About the Heating Issue Smart Charging is designed to help reduce heat and extend battery life, but if your device is still getting hot:
Avoid using it on soft surfaces like beds or couches.
Close unused apps and check Task Manager for high CPU usage.
resources and community threads that can help you with your concern: Smart charging on Surface - Microsoft Support
We’re here to help and really appreciate your patience while we work through this together.