No longer use phone how to clear all data - unrecoveriable

[EMostafa]

How do clear your old phone data? do you use restore factory setting? does it work? but if the phone can't boot what should we do?
Please tell me how you did it, thank you.

 

[georgiabrooksy]

Here are detailed instructions you may follow.
How to Fully Erase Everything on a Android Phone or Tablet | Digital Trends

 

[EMostafa]

That's what I want, Thank you!
I have another phone can't boot, is there a way to wipe all data?

 

[georgiabrooksy]

Hey, sorry didn't see your comment. I'm assuming you must have got the answer but still here are some detailed instructions you might want to see;
How to Factory Reset Your Android Phone or Tablet When It Won’t Boot