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