Whether installing custom ROMs or rooting your Android device, u67nlocking the bootloader is a must-complete option to complete these processes. If you want to root your phone, you need to grant some permissions, and these permissions can only be granted by unlocking the bootloader.
If you use a PC, unlocking the bootloader is much easier. But if you don’t have a PC and still want to unlock it, you need to know “how to unlock the bootloader on an Android without a PC.” First, you need to install some software on your device.
After that, you need to follow some steps. The process must be done perfectly. Otherwise, the operating system of your Android phone will get damaged.
How to unlock the bootloader on an Android without a PC properly
There are multiple ways to unlock the bootloader on an Android phone. However, to complete these processes, you must root your phone. The processes are described below.
Using ADB and Fastboot Drivers to unlock the bootloader
You can use the ADB and Fastboot drivers to unlock the bootloader on your Android phone.
However, you need to root your Galaxy phone and some extra software and tools for this process. The process is described below.
Step 1: Download the ADB and Fastboot drivers, as well as Terminal Eliminator, on your Android device
Type “ADB & Fastboot driver” there.
Click on the search icon to search.
A lot of web pages will appear on your screen. Choose the official one.
Go down to that page and choose the “Download” option.
Wait until the download process is finished.
Do the same process for downloading the “Terminator Eliminator” software also.
Step 2: Install ADB Driver and Fastboot drivers, as well as Terminal Eliminator, on your Android device
- Go to the download folder in your Android phone’s storage management app.
- Look for the two downloaded files that you downloaded a moment ago.
- Click on one of them and select Install.
- Wait until the installation process is over.
- Now install another app.
Step 3: Open the ADB driver on your Android phone
- Look for the ADB driver app icon on your Android phone.
- If you get it, click on it to open it.
- This software may ask for some permissions, permitting them all.
- Now go to the “insert” section in this app.
- Choose the “system” option there.
- A new prompt will appear on your screen. Choose “Bin folder” there.
Step 4: Open the Terminal app on your Android phone
- The Terminal app icon will appear in your app list after installing it.
- Click on that icon to open it.
- You will see a command prompt has appeared on your screen.
- This prompt will ask for a code.
- Type the following code in the typing box of the prompt.
mount -o remount,rw/system
chmod 755 /system/bin/fastboot
Step 5: Reboot your device and connect it with a device that has been rooted with an OTG cable
- Press and hold your power button for a couple of seconds.
- You will see that the power menu of your Android phone has appeared on your screen. Choose “Reboot” there.
- Wait until your phone gets rebooted.
- After that, take an OTG cable and connect one side of the cable to your phone.
- Connect the other side of the cable to a rooted Android phone.
Step 6: Booting the connected device
- Open the Terminal Eliminator on your Android phone.
- Type “adb reboot bootloader” there.
- Press the “OK” option at the bottom left corner of your screen.
- You will see that the connected root device has started booting in fastboot mode.
Step 7: Unlocking the bootloader
- When the other rooted device has completed its boot, type “fast boot devices” in the Terminal Eliminator app.
- You will see the list of all connected devices there.
- Choose your Android phone from that list.
- Type “fastboot oem unlock” in the command box.
You will see the bootloader is unlocked on your device. Wait until the process is completely finished.
Using Kingoroot to unlock the bootloader
You can unlock the bootloader with the help of the Kingo Root app. The procedure is described below.
Step 1: Downloading the Kingoroot app on your Android device
To begin, launch your Android device’s browser.
Then, type “Kingoroot.”
To search, click the search symbol.
On your screen, a large number of websites will be displayed.
Select the authorised website.
After that, select “Download” from the drop-down menu on that page.
Wait till the download has been completed.
Step 2: Installing the Kingoroot application on your Android device
Go to the “file manager” app on your Android phone.
After that, go to the download folder.
There will be the downloaded APK file for KingoRoot. Click on it.
Press the “Install” option.
Wait until the installation process is finished.
Step 3: Starting the rooting process
- When the installation is completed, click on the app icon to open the application.
- It may ask for some permissions and permit them all.
- Now press the “One-click root” button on your screen.
- Wait until the rooting process is completely finished.
- When the rooting process is finished, a notification will appear on your screen, saying “Root Succeed.”
Step 4: Installing the root checker app
Open the app list on your Android phone.
Choose the “Google Play Store” there.
When the app is opened, click on the search option at the top right corner of the screen.
Click on it and type “Root Checker.”
When the installation page of the root checker appears on the screen, click on the “Install” option.
Wait until the installation process is finished.
Step 4: Open the root checker app to check if the rooting process was completed perfectly or not
- Go to your app list again.
- Click on the root checker app icon.
- The app will ask for some permissions, and you need to grant them all.
- Now check the root status of your Android phone.
- If it says, “Your device is rooted,” follow the next procedure.
- However, if your device is showing that it is not rooted, perform the rooting process again.
Step 5: Install Flashify software and start the flashing process
- Download the Flashify software and install it.
- Click on the app icon from the app list to open it.
- Grant SuperSu permission for this app.
- After that, you will see a pop-up has appeared on your screen.
- Click on the “Accept” option to continue the procedure.
Step 6: Download TWRP from the Flashify software
- After you have accepted the disclaimer, a new menu will appear on your screen.
- Choose the “Flash” option there.
- Now press on the “Recovery Imager” section.
- A contextual menu will appear on your screen; choose “Download TWRP” from there.
- You will see a list of devices on your Android phone screen.
- Select your device from that list.
- The app will ask for confirmation with a pop-up; press “Yes” there.
- Wait until the flashing process is finished.
How to unlock the bootloader without a PC and without a root
There is no way to unlock the bootloader without a PC and without rooting your phone. Either you have to use a PC to unlock the bootloader or root your phone first. You can also try to get your phone to a cyber cafe to unlock the bootloader if you don’t have a PC.
Is it possible to root without unlocking the bootloader?
No, it is not possible to root without unlocking the bootloader. The rooting process requires certain permissions to be completed. And this type of permission can only be granted by unlocking the bootloader. So you can’t root without unlocking the bootloader.
Is it possible to install a custom ROM without unlocking the bootloader?
No, it is not possible to install a custom ROM without unlocking the bootloader. To install the custom room, you need to root your phone. However, you need to grant some permissions before rooting your Android phone. And these permissions can only be permitted by unlocking the bootloader.
Can we unlock the bootloader on Android?
Yes, you can unlock the bootloader on your Android phone. However, you need to install some apps and follow some steps for this purpose. The bootloader unlocking process has to be perfectly executed. Otherwise, the operating system of your Android phone will get damaged.
Hopefully, you have come to know all of your quarries on loacking and unlocking Android bootloacker. As an certified learner on Android developer platform, I sorted out this for you. For further question, feel free to ask me.