Understand the idea
High temperature can reduce device performance and battery comfort. Heavy graphics, direct sun and charging at the same time can increase heat.
Put it into practice
Move out of direct sunlight, stop demanding apps and let the device cool in a ventilated place. Follow the manufacturer’s temperature and charging guidance.
Know the limits
Do not place a hot device in a refrigerator or apply moisture to cool it.
The wider context
Stable devices make online reading and practice easier, but performance settings cannot change the odds of a game. Back up important data before disruptive troubleshooting. Use manufacturer documentation for model-specific steps and keep software within supported, trusted distribution channels.
Your next step
Use the practical step above only where it fits your situation. Before an account-specific action, check the current instructions from the service or device provider involved. Write down what you observed and what remains uncertain; that makes a follow-up question more useful.