How to Unlock Bootloader on an Android Device – Guide
Now you can unlock PC-less bootloader using adb and fastboot. This guide can help you fix bootloader unlocking allowed no errors. Also, some OEMs like Xiaomi, Sony, HTC, Samsung follow a different path when it comes to completing this process. So to consider this, there is a separate section for it in the final of this guide. The main concern or question that turns on the mind is how a Bootloader works and is it necessary to unlock it. Well, in short, if you’re not one of those technical geeks who like to tweak your devices’ software, then we suggest that you don’t unlock the device’s bootloader. While there are many, many benefits to having an unlocked bootloader, it also has its drawbacks. Let’s take a look at both sides of the coin here.
Step Zero: Back Up whatever you want to keep
Before starting, it is important to mention: this process will erase all your data. So if you have photos or other files on your phone you want to keep, download them to your computer now. Also, if you have any application settings you want to keep, use the backup function to create a backup settings file and transfer them to your computer as well. here is an extra tip: Since I know that eventually I will root my phone, I always unlock my bootloader as soon as I buy a new device. So I don’t waste time configuring up just to erase the phone in a few days and do it all over again. If you’re an obsessive Android tweaker who knows you’ll be rooting for it soon, consider unlocking before going through the setup work up your phone. when did you support up whatever you want to keep, continue with the steps below.
Step one: Install the Android SDK and your PhoneDrivers from
You will need two things for this process: Android Debug Bridge, which is a command line tool for your computer that allows you to interface with your phone and your USB phonedrivers. Even if you’ve installed this before, you should get the latest versions now. we detail how to install both first, but here’s the short version: turn on your phone and connect it to the computer using a USB cable. Open the platform tools folder in your Android SDK folder and Shift + right click on an empty area. Choose “Open a command prompt here” and run the following command: If it shows a serial number, your device has been recognized and you can continue with the process. If not, make sure you have performed the above steps correctly.
Step Two: Enable USB Debugging
Next, you will need to enable some options on your phone. Open your phone application drawer, tap the Settings icon and select “About Phone”. Scroll all the way down and tap the “Build Number” item seven times. You should get a message saying you are now a developer. Go back to the main Settings page and you will see a new option near the bottom called “Developer Options”. Open it and activate “OEM Unlock” if the option exists (if it doesn’t, don’t worry – it’s only necessary for some phones) Then enable “USB Debugging”. Enter your password or PIN when prompted, if applicable. Once that’s done, connect your phone to your computer. You should see a pop-up titled “Allow USB debugging?” On your phone. Check the “Always allow from this computer” box and tap OK.
Step three: get an unlock key (for non-Nexus Phones)
If you are using a Nexus device, you can skip the next step. Non-Nexus devices will likely need to go through an extra step before you can continue. Go to the manufacturer’s bootloader unlock page, choose your device (if prompted) and login or create an account. The rest of this step is a little different depending on your phone, but the manufacturer’s website should guide you through the process. It will go something like this: first, turn off your phone and boot into fastboot mode. This is a little different in each phone, but on most modern devices, you can get there by holding the “On” and “Volume Down” keys buttons for 10 seconds. Drop them and you should be in fastboot mode. (HTC users will need to select “Fastboot” with the Volume Down key and press the power button to select it first.) Usually, you can find more information about yours. phone with a quick Google search, feel free to do that now before continuing. connect your phone to your PC with a USB cable. Your phone should indicate that the device is connected. On your computer, open the platform tools folder in your Android SDK folder and Shift + right click on an empty area. Choose “Open a Command Prompt here” and use this Command Prompt window to retrieve your unlock key as described by the manufacturer. (eg Motorola phones will run the fastboot oem get_unlock_data command, while the HTC phones will run the command fastboot oem get_identifier_token.) The Command Prompt will issue a token in the form of a long string of characters. Select, copy and paste into the applicable box on the manufacturer’s website – make sure there are no spaces! – and submit the form. If your device can be unlocked, you will receive an email with a key or file that you will use in the next step. If your device cannot be unlocked, you will receive a message informing you of this. If you want to root your device or flash a ROM, you will need to use an unofficial method, which can usually be found on a website like XDA Developers.
Step four: unlock your Phone
You are now ready to actually perform the unlock. if your phone is still in fastboot mode, run the command below. If not, turn off your phone and hold the “Power” and “Volume Down” button buttons for 10 seconds. Drop them and you should be in fastboot mode. (HTC users will need to select “Fastboot” with the Volume Down key and press the power button to select it first.) Connect yours phone to your PC with a USB cable. On your computer, open the platform tools folder in your Android SDK folder and Shift + right click on an empty area. Choose “Open a command prompt here.” To unlock your device, you will need to execute a simple command. For most Nexus devices, this command is: If you have a newer Nexus, like the Nexus 5X or 6P, the command will be a little different: If you have a non-Nexus device, the manufacturer will tell you which command to run. Motorola devices, for example, need to run fastboot oem unlock UNIQUE_KEY, using the unique key from the email you received. HTC devices will run fastboot oem unlocktoken Unlock_code.bin using the Unlock_code.bin file you received from HTC. After executing the command, your phone may ask if you are sure you want to unlock. Use the volume keys to confirm. When finished, use the on-screen menu to reset your phone (or run the fastboot reboot command on your PC). If everything worked correctly, you should see a new message on startup that your bootloader is unlocked and after a few seconds it should boot into Android. It’s important that you boot Android before doing anything else, such as updating a custom recovery.
Final note
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