How to Root T-Mobile LG Optimus L90 D415 on Android 4.4.2 KitKat


In this guide we are going to show you to root your T-Mobile LG Optimus L90 D415 on Android 4.4.2 KitKat by just one click. T-Mobile LG Optimus L90 is a mid range device for light users, the box opened LG L90 comes with a factory installed Android 4.4.2 KitKat without further updates from LG but the powerful hardware of LG L90 is capable of running any latest firmware through custom ROMs. If you want to update your device to latest firmware via custom ROMs or you like tweaking your device then we advise you to root your device first because root is the only way to get into the Android’s freedom world.

We have mentioned each and every step in the below instructions if you are new to this rooting process then you have to pay attention through out the complete process and follow the steps in the same sequence as described. We have already posted guide on the rooting process of LG devices with the same root tool, you can also follow them for your guidance. Before we proceed and start the rooting process let’s tell you briefly some benefits of having rooted device.

Benefits of Rooting T-Mobile LG Optimus L90 D415

Overclock CPU frequency: By gaining root access on your device you can overclock the CPU frequency for example, if your device has maximum of 1000 MHz processor speed you can enhance it too 1200 MHz and you can feel a difference in performance. But it is not always recommended to overclock CPU more then it’s maximum power.

Bloatware kill: Rooting allows you to remove non usable pre-installed apps by provided by device manufacturer. Removing these apps will give you more RAM and free storage space.

Modification in System: Rooting allows you modify the system settings and add or remove the system files. Advance file explorers with an ability to gain root access are used in this operation, even you can also made the third party apps permanent in the system files directory.

Now let’s move forward and follow the below guide to root your device and remember this tutorial is only for the T-Mobile LG Optimus L90 D415 do not try it on any other device.

Before you begin:

Disclaimer: This tutorial includes multiple operations which includes Installing Custom ROMs, Custom recovery and root. Follow the guide on your own risk, we are not responsible if you brick or damage your device however the chances of bricking a device are rare but you have to pay full attention on the complete guide to avoid any issues and difficulties while performing any of the above mentioned operation.

  • Your phone battery should be charged minimum 60%
  • Download LG USB drivers
  • Your device Bootloader should be unlock or click here for official unlocking
  • Enable USB Debugging (Settings >> Developer Options >> USB debugging)

Download these files:

Download & Extract “LG One Click Root v1.3” on your PC at any convenient location.

How to root T-Mobile LG Optimus L90 D415

Just follow these simple steps to root T-Mobile LG Optimus L90 D415 easily.

  • Click the installed “LG One Click Root” tool on your PC
  • Connect your device to PC and select the MTP option


  • Now run the LG One Click Root and follow the on screen instructions.
  • Wait a few minutes for the rooting process to complete
  • Once complete, disconnect your device from PC

That’s it! Your T-Mobile LG Optimus L90 D415 has been successfully rooted now enjoy tweaking your device. If you have any query feel free to contact us by posting your queries in the below provided comment section.

A Software Engineer who loves to hang around latest gadgets and writes his own experiences to get the best possible and accurate information.
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