So the bootloader is something like a policeman who controls if you are using original Operating System(OS) by your phones company. So if you flash(install) another OS without unlocking bootloader, the policeman will say to phone: Nope, you are not gonna boot this. (all how to do it will be on bottom of thread)|
But why should you want to unlock it?
- There is a planty of reasons but most common is: No more android and security updates.
Do I need these android and security updates?
- Yes and No. You need most importantly security updates, the android updates just bring new features and design.
I want to unlock the bootloader, how can I do it?
- Please note that the unlocking bootloader can void your warranty and will factory reset your device!
Lets move to root. What does it mean?
It gives you administrator in whole system and you can do anything. (modify system files, install apps which require root and so on...) But is it safe? The answer is: No for average user. There are plenty apps which require root and can harm your phone, collect completely everything what you do, what you are writing, see your contacts, your passwords and etc... Yes this sounds pretty bad, but if you use the right apps, you are good to go.
A custom recovery? Whats that?
It lets you to install .zip, .img packages which can root, install custom roms or modules.
What are modules?
Modules are special modifications which can be installed and uninstalled without wiping anything else from phone.
What about custom roms? What are these things?
Custom roms are OS developed by indenpendent developers, community or another company. Every single custom rom is unique and different. You should watch yourself here too becouse not every custom rom is safe. The most safest custom roms will be on bottom of the thread.
So how do I unlock my bootloader?
How do I root?
The most sweetest thing, the custom roms:
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