Originally Posted by nsnobel2
Hope you guys will help
Customer came to me demo with 4.3, He just wants to update to 4.2.2
Should I direct flash this version or I have to keep some secure steps to avoid brick?
You can't flash live software onto a demo version due to having no radio on it, well it can be done but it's a right pain playing with the files, a couple of people have managed it but it's really not worth it in all honesty. You can (soft) brick very easily and it's not so easy to recover from it.