Understand the idea
A phone may contain active sessions, authenticator access and personal records. A reset requires planning so that you do not lose your own recovery methods.
Put it into practice
Back up needed data, transfer authentication methods, follow the manufacturer’s account removal instructions and complete the supported factory reset process.
Know the limits
Deleting photos alone does not remove account sessions or all personal information.
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.