Reboot to Bootloader – what is Android, why do we need the functionality

Reboot to Bootloader - what is it Android

Good day! Not many Android users know that their devices can be rebooted and then enter the Bootloader menu. This is a very useful feature that is not available on all devices, but it is worth to learn about it. Reboot to Bootloader – What is the Android bootloader and how to use it – learn more about it in this publication.

Bootloader in Recovery

– Between Exchange

Bootloader Purpose

To briefly describe its functionality, it is a kind of BIOS on a computer. That is to say. It is a kind of intermediate state, a shell before starting the full version of the system. It is designed to gain access to the recovery mode with the subsequent booting of the normal operating system. This is useful when the Android was locked or the firmware is broken for some reason. Running the command “Reboot to Bootloader” (RtB), you can get to the menu, where the actions of software update, unlocking will be available.

It’s worth mentioning that the manufacturers of mobile devices make every attempt to prevent users from installing third-party (unofficial) firmware. But with the use of Bootloader, it is realistic to bypass all bans. This is a kind of boot record, from which the information about the order of starting the smartphone is taken – which services and hardware components should be loaded and started first, and which – later.

With this functionality, the owners of gadgets can not only change the version of the operating system, but also remove any pre-installed applications, activate root access, reset to factory settings and more.

It’s worth noting that the “Reboot to Bootloader” option is not available for every model, and the appearance of the menu can differ significantly.

By the way, if the device has the Root access, then there is no need to enter the Recovery mode for RtB. It’s enough to use the free utility Holo Reboot.

Reboot options in Reboot menu

Another perk of Bootloader is the ability to fix software crashes. This is useful when you rarely restart your system (and it’s advisable to do it at least once a week). Also, the option will help eliminate viruses in the form of unremovable software or pop-up Android ads.

You’re probably already confused by the theory and would like to get to the practical part. Here it comes!

The basics of using Reboot to bootloader

What it means – I told you above. And now – some important recommendations:

  • Everything you do in Bootloader (the main bootloader of Android) – do it at your own risk. I am not responsible for any problems that occur during manipulation. The probability of device failure is quite high if incorrect operations are performed;
  • The risk of data loss is also rather high. It is desirable to create backups on third-party media beforehand. Otherwise you can lose important information while trying to unlock the phone with RtB.

The shell should be launched when the smartphone is turned off. Then simultaneously press and hold the two keys – Power Power (Power on/off) and Volume Down. For Samsung, the sound control button can be replaced with Home.

Recovery activation buttons

Thus, we find ourselves in the menu Recovery, and from there we go to RtB:

Reboot Bootloader in Recovery

This way works for virtually any model, regardless of the manufacturer (only the appearance can be different. In the screenshot above is an example for HTC).

There is also second way. If you have unlocked Developer Mode (Developer Mode), you can open “Advanced Settings” – “For Developers” and activate “Factory Unlock” (valid for Android 5 and higher) when the device is on:

Unlock Android

Then press the power button, select “Reboot” and the modes should appear, among which there is a Bootloader.

Note that in this article I did not go into the specifics of the firmware and the advanced application of the described functionality. The point is that every situation is different, and it is a wrong approach to advise one thing or another. I told Reboot to Bootloader – what is it Android, and if you want to know specifically for your smartphone (how, what to do), then I recommend you visit the most authoritative forum 4PDA.

Regards, Victor!

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