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