Usuario:Juanda/android/Introducción

• Unlocking y Rooting
• Unlocking:

Se refiere a desbloquear el bootloader. El bootloader viene siempre bloqueado por defecto. Los OEM (Original Equipment Manufacturer) no te dan la clave de desbloqueo, que se asemeja a la llave de la casa. Si el bootloader está bloqueado no se puede flashear una ROM cocinada, no se pueden editar ficheros del sistema o sustituir la imagen

If your bootloader is locked you can’t replace your recovery image, you can’t flash a custom ROM, and you can’t edit your system files. To many users, this is just fine. To others it’s not.

To be able to remove pre-loaded bloatware, install a “current” version of the operating system by way of a custom ROM, or even to install some specialized apps, you’ve generally got to unlock your bootloader to start the process.

Some OEM’s provide a way for you to unlock the bootloader using a tool you can download from their website. Other’s won’t let you unlock “their” phones at all. In that case the development community usually bands together to figure out how to exploit a security vulnerability and unlock the bootloader anyway.

What is Rooting? After your device has been unlocked it’s possible for you to Root it. Rooting is the process of allowing you to run your device with root-level permissions. Additionally, when we talk about Root we generally include Superuser permissions and various tools that assist with power user type activities.

Depending on your device it may not be necessary to unlock your bootloader before you root it. In other cases it’s a must.

Once Rooted it’s possible for you (or a malicious program) to replace pre-installed apps, modify or replace system files, and do all sorts of low-level stuff. For example, this is how many apps allowed us access to the LED flash as a flashlight before Google exposed an API for us. Root is how we were able to tether on carriers that wanted us to tether their way — or not at all. Ironically, root is what allows us to backup our files and our devices, so if something happens we can quickly and easily recover.

Most custom ROMs come pre-rooted, others do not. Recently, the CyanogenMod team has mused about the day when they’ll be able to run everything they do in their ROM without requiring Root. The way this can be accomplished is through more robust and complete APIs — application programming interfaces — so that one program can talk to another program with regular user-level permissions, and without having to have root. Maybe someday that will happen, but for now, some of us need root.

Oh, and how about that link where you can turn your Nexus 7 into a phone? Here it is: Make And Receive Free Voice Calls With Your Android Tablet.