Even though the LG K20 Plus was released with the Android 7.0 Nougat firmware pre-loaded it might not receive the latest Android build – due to hardware limitations the official Android 8.0 Oreo support might be stopped for the K20 Plus. That’s why you might end up in choosing a custom ROM instead of the stock LG UI. Well, if that will happen, you will notice that a few tweaks must be first ensured. Thus, in order to help you out I am going to start this tweaking process by showing you how to successfully unlock the LG K20 Plus bootloader.
Unlocking the bootloader is a necessity but not only for custom ROMs update operations. By completing this tutorial you begin a tweaking set of procedures which will help you customize, optimize and personalize your device. In the end, the goal will be to improve the performance of your LG K20 Plus.
The bootloader is nothing but the small program that runs each time you power on, switch off or reboot your Android device – in fact it’s quite similar with what you see when you complete the same operations on your computer. Overall, the bootloader is there to initiate the start-up sequence; so it will load the Android OS along with other essential apps, processes and features. During the bootloader program the OS will be loaded from the ROM memory into the RAM partition of your LG K20 Plus.
This small program must be unlocked because it’s coming pre-installed with different restrictions. These restrictions will prevent third party apps and processes from making changes within the Android core system. Shortly, if you don’t unlock the bootloader you cannot afterwards gain root access, install a custom recovery image, flash a custom ROM firmware, add a custom kernel, install custom MODs, remove bloatware or overclock / undervolt your Android device.
As you can notice, completing this tutorial is quite indicated, especially if you want to obtain more from your LG K20 Plus. But, before resuming these guidelines I should make clear the main risk that must be assumed: the warranty of your phone will get void because you are about to complete an unofficial operation that’s not supported or backed up by LG or by Google. So, if something bad happens you will be by yourself. In case you are not ready to lose the warranty, maybe a better idea will be to skip this custom process.
A backup should not be optional even if through the unlocking operation your data should remain safe and secured. But, since you will be applying a manual process the best is to be precautious. In that respect you should use cloud storage services from your LG K20 Plus or you should sync your data with your Google Account, or use a third party backup and restore app from Google Play in order to secure what’s important for you – basically, you should save everything that’s not there from day one.
A manual operation can be completed if a computer can be used. On this computer you need to install Android SDK – learn how to set up Android SDK on Windows or how to install Android SDK on MAC OS X / Linux. On the same computer the LG K20 Plus drivers must be flashed. Then, on your phone you have to check the USB Debugging option and the OEM Unlocking field. These options can be accessed from Developer Options – within menu – > settings. If you don’t have Developer Options enabled, go to About Phone and tap repeatedly on Built Number until you get the ‘you are a developer’ message.
Don’t begin the steps from below if your phone is running out of power – as a general rule, there must be more than 50% power left. Thus, if required charge your LG K20 Plus before unlocking the bootloader. Hint: don’t skip this task if you want to keep everything safe and secured – if your phone gets turned off in the middle of the unlocking operation you might end up in experience soft related problems.
How to Unlock Bootloader on LG K20 Plus without hassle
- On your computer navigate inside the Android SDK folder.
- And from there launch a cmd window – press and hold the Shift keyboard key and right click on any blank space; afterwards select ‘open command prompt window here’.
- Switch on your smartphone and ensure a USB connection with your computer.
- In the cmd window now type: adb reboot bootloader.
- Next, type: fastboot devices; if your phone isn’t displayed it means it hasn’t been recognized by your computer situation during which you need to reinstall its drivers before retrying the steps from above.
- Return to the cmd window and enter: fastboot oem unlock.
- The bootloader will be now unlocked.
- When the process is ended, remove the USB cord and reboot your LG K20 Plus.
- That’s all; enjoy.
The bootloader that runs on the LG K20 Plus is now unlocked. Therefore you can now install TWRP recovery on your device and flash SuperSU for gaining root access – these two operations will be soon explained, so stay close. Tell us if you had problems while completing the steps from above because we are here to help you out. Also, use the comments field from below in order to share your Android experience with us and with our readers.