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What Is Bootloader ?





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If you are new to the world of Android hacking and rooting, then there are many geeky terms that might bamboozle you and might end you up with quitting the idea of rooting altogether. One such term that confused me too before I was trying to root my NexusOne long ago was “Bootloader”. I went through many online tutorials, hopped through infinity YouTube And Vimeo videos for a simple answer that why on earth I need to unlock my phone’sbootloader before trying to install any custom ROM or even attempting to root. Although I wasn’t able to acquire an answer at that time, but now as the time has changed and we have access to more refined information, the bootloader mystery puzzle has started to fall in place. So in this guide, we will be going through basic questions like what is a bootloader? Why you’d like to unlock it? and how to unlock? On our way, we will also see what threats a user faces when unlocking a bootloader.

What Is A Bootloader ?

In literal terms, bootloader is code that is executed before any Operating System starts to run. The concept of bootloaders is universal to virtually all Operating systems that inculcates operating systems on your PC, laptop, smartphones, and other such devices. Bootloaders basically package the instructions to boot operating system kernel and most of them also have their own debugging or modification environment. As the bootloader kicks off before any piece of software on your device, it makes it extremely processor specific and every motherboard has it’s own bootloader. This is one reason that all Android phones have different Custom ROMS developed due to high variance of processing hardware present on the device. The iDevices running iOS somewhat share the same hardware specs and hence you don’t see much variance in their bootloaders.

Android Phone Bootloaders ?

Why Is Bootloader Locked ?

Why To Unlock Bootloader On Android Devices ?

Warning: Unlocking your phone’s bootloader voids its warranty. It also completely wipes (formats) your Android phone’s internal memory including applications, contacts, SMS andMMS messages etc.

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