Answers to frequently asked questions on DND devices. Reasons for a hard reset or reset a DND, Is it safe to do a hard reset or format in a DND?, What data is deleted when performing a hard reset in a DND?, What should I do before doing a hard reset?, Can I install Fortnite on my DND?, I forgot the PIN code of my DND, I forgot unlock pattern, How to make my DND faster?, How to update my DND? How to backup my DND?