On this page, you will learn how to unlock bootloader on your Sony G8342 (2017). Using the bootloader you can install custom ROM, custom recovery, custom kernel, and flash the factory images, etc. The bootloader will help you to unlock your device legally binding, but it will affect the device warranty. Sony doesn’t allow you to unlock the bootloader. Mostly Android OEM manufacturers lock the bootloader, if you want to install any CUSTOM ROM, you must need to Unlock Bootloader of your G8342 (2017). It will void the warranty.
The Bootloader is a code that always runs when someone power on its device. Some hardware start automatically and gets the boot process then loads the kernel and ramdisk. That is the Bootloader. It allows you to Root your Android smartphone, Flash TWRP and Custom ROM in a simple easy method.
You can install any custom ROM like Lineage OS, Resurrection ROM, etc.
You can also root your device.
Install a custom recovery like TWRP.
After unlocking the bootloader, it voids the warranty of your device.
You will no longer receive the official OTA updates.
You can brick your device if you do not follow the steps carefully.
You need a PC/laptop
Make sure that your Sony G8342 (2017) is charged more upto 70%
You need a Micro USB cable to connect your phone with PC
Now download ADB and Fastboot Tools and Extract it in your PC
Follow the below steps to unlock the bootloader on G8342 (2017)
First of all, download and extract the latest ADB and fastboot tool in your C:// Drive.
Then you need to enable the Developer Options on your Android device.
Now Go to Settings –>> System –>> About Phone and press on Build Number 7 – 8 times until you see a toast message “You are now a developer”.
In this step, now open the developer option and enable the OEM Unlock toggle. See the below image:
Under the Developer Options, you need to enable USB Debugging. See the below image:
If the command show device is unauthorized on your Sony G8342 (2017). Then, you will see a popup message to allow USB Debugging. Please
"Always allow from this computer" and press on the OK button.
Now connect your phone with PC using the original Type C USB cable, and install all required drivers on your Computer.
Once it connected, open the ADB folder inside the C:/Drive
On your ADB Folder, Open the command window / PowerShell: To open Press the Shift key and Right Mouse click anywhere inside the folder. See the below image:
First of all, please open window command, now Type the below commands in the CMD and press Enter;
adb reboot bootloader
The next step is; you can enter the bootloader or Fastboot Method mode on your Sony G8342 (2017) device, using the command below.
adb reboot bootloader
Now your G8342 (2017) smartphone is now boot into bootloader mode, if the device is connected properly to Fastboot Method mode, then you need to enter the following command:
fastboot flashing unlock
If the above-given command does not work then you can try to use the below command:.
fastboot oem unlock
Now, you will get a confirmation message on your phone screen. You need to navigate to yes and hit the Power button to unlock the bootloader. See the below image:
If you will not get confirmation message then make sure to download the latest USB Drivers, and follow the above-given steps again.
Finally, click on the enter button, and the Sony G8342 (2017) smartphone will show you a warning message about the risks of the bootloader unlocking.
If want to unlock bootloader, then you need to confirm with the Volume Key then enjoy unlocked your G8342 (2017) smartphone. using the bootloader method.
Your device will produce a factory reset, and once you must reboot. The device will look the same interface just like the out of box setup.
Once you have done, you can reboot your device using the command:
That’s It! Finally reboot your phone and during this, all data will be erased.
Using the above-given steps you can unlock the bootloader on your Sony G8342 (2017). You can root your device, and install various MODs, custom ROMs or modify the firmware of your device.
Note: The Bootloader unlocking process will affect your Sony G8342 (2017) phone data like images, videos, and files. We advise you before start unlocking bootloader you need to create a backup and save it in a safe location.