I'm just starting with android and planning on rooting my phone (vD800) eventually. I made a backup here: all settings> general> backup and reset but I don't think this is what I need for recovering from a failed root. What do I need to get so I can make an image of the phone? I have lots of questions but that'll do it for now.
You don't replace the OS until after the custom recovery (such as TWRP) is installed. So after you install TWRP or whichever recovery you want just boot in to the recovery and then backup there. Then flash whichever ROM you want.
Ok I get the part about not replacing the OS until you are rooted. So just root it and if I fail post here and see if anyone can help?
I guess I'm just trying to be sure I understand what I'm getting into before I do something that could seriously mess up my phone.
You can use the LG backup app on your phone, it's quite good. Then move or copy the backup file to the computer for safekeeping. I did this when I downgraded back to jellybean from kitkat in order to root kitkat and it worked perfectly. There's nothing about the root process for jellybean that will hurt the phone or cause data loss.
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