Can I root my phone?
Can I install the system update on my rooted phone normally?
What is a locked BL?
How to check if my phone is rooted?
Is it possible to unlock the BL?
What is root?
Is my phone warranty still valid after phone rooting?
Is it possible to upgrade the operating system once my phone is rooted?
Introduction to OEM unlocking
The phone shows “is-root=1”
How to change the status from "is_root=1" to "is_root=0"?
Introduction to NV parameters
Do vivo mobile phones have locked BL?