Sell smartphone factory condition?

Pa
- in P series
5

I want to sell my used Huawei p10. To do this, I would set it to factory condition beforehand. My question: Are all of my data really deleted or could it be restored somehow?

Go

If you reset it correctly to factory settings, everything will be deleted. It's like buying a new one

Si

If you reset it to factory settings nothing can happen.

Pa

Great, thank you

Pa

Thank you very much

Go

Very much