I am very interested in about take root of Android phones and I'm noob of reverse engineering.
I have some of old Android devices that already unused. Some Android devices provide easier path to root with fastboot mode, But Some of others disabled it by vendor.
What should I find to root non-easier Android device that disabled fastboot mode by vendor? Is it something privilege escalation?
I have no idea what should I find and How to find it.
Thanks for regards.