Hi
is this root need to unloock the bootloader ?
Is the root will remove everything on the device ?
If yes how to do backup ?
Which bootloader? What phone you have: N7100 or N7105? 4.1.2 or 4.3 or 4.4.2?
No root method removes anything from the device (unless one is highly stupid)
Backup is needed when you flash custom roms.
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