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How to Install Unofficial CM12 Android 5.0.2 Lollipop ROM on LG G2 Mini D620

Android 5.0 Lollipop update has not been released for the LG’s mid-range smartphones like other Android OEMs and LG has not yet announced the exact release date for the official 5.0 Lollipop update to devices like LG G2 Mini. But thanks to invaderjohn (XDA Senior Member) for developing the unofficial CM12 Android 5.0.2 Lollipop ROM that supports the LG G2 Mini LTE edition having model number LG-D620. This ROM is working well without having major issues except lift to wake up, NFC and Knock-on and it can be used as a daily driver.

If you are interested to get this unofficial CyanogenMod 12 Lollipop ROM on your LG G2 Mini then here we have a step by step guide that how to install CM12 unofficial Android 5.0.2 Lollipop ROM on LG G2 Mini D620. Keep in mind that this is just a custom ROM which is developed by the third-party developers, not officially released by LG. Thus, you’ll need a custom recovery like CWM or TWRP in order to install the ROM and Google Apps zipped files on the LG G2 Mini.

Working Features:

  • Vibration
  • Camera

Not Working Features:

  • Lift to wake
  • NFC
  • Knock-On


This tutorial having the unofficial CyanogenMod 12 build can be used only with the LG G2 Mini. Do not try to install this ROM on any other device or incorrect variant. You can check the model number of your device from Settings > About Phone > Model Number.


AndroidBlog will not be responsible for any kind of damage occurred to your LG G2 Mini during or after the installation of Android 5.0.2 CM12 custom ROM. Proceed at your own risk.


  • Make a proper backup of all your important data and settings using a recommended custom recovery on the phone before proceeding to the installation guide.
  • Download and install the correct LG G2 Mini Drivers on the PC.
  • Enable USB Debugging Mode on the LG G2 Mini.
  • Your phone should be rooted with a custom recovery installed on it.
  • Check the battery level of your LG G2 Mini, it should have at least about 80% of charge.

Required Files:

  • Download CM 12 Android 5.0.2 Lollipop ROM for LG G2 Mini
  • Download Gapps

Steps to Update LG G2 Mini to CyanogeMod 12 unofficial ROM based on Android 5.0.2 Lollipop:

Follow the given step-by-step guide to taste the tweaks and customizations of the CyanogenMod 12 ROM based on Android 5.0.2 Lollipop on your G2 Mini:

1:-  First, download the Android 5.0.2 Lollipop CM12 ROM ( and Google Apps .zip files on the desktop of your PC for your LG G2 Mini. Do not extract ROM .zip file.

2:- Connect the LG G2 Mini to the PC using its USB Data Cable and mount the Mass Storage of the phone.

3:- Transfer the downloaded ROM and Google Apps files to the root folder of your SD card on the device.

4:- Now, disconnect the device from the PC and turn it OFF in order to boot into Recovery Mode.

5:- Turn ON the G2 Mini while pressing and holding Volume Up + Power keys at the same time for a while until the device enters into Recovery Mode.

6:- Go back to the main recovery menu and perform a full data wipe. This includes Dalvik cache, Cache, System, Factory data reset.

7:- Go back the main Recovery menu and choose install zip from sdcard > choose zip from sdcard.

8:- Find the ROM and Gapps files that you’ve already transferred to the root folder of your SD Card in Step No 3. Select the Lollipop ROM file and proceed the installation process.

9:- Once the ROM is successfully installed on your LG G2 Mini, install Google Apps package by following the same procedure as given above.

10:- After the installation of CM12 Android 5.0.2 ROM and Google Apps, select reboot system now to reboot the LG G2 Mini.

It will take about 5 minutes to boots up for the first time after installing ROM on your phone.

Done! You have successfully updated LG G2 Mini to Unofficial CyanogenMod 12 custom build based Android 5.0.2 Lollipop.

If after installing this ROM, you are facing issues or don’t like it then you can easily restore the previous ROM by booting the LG G2 Mini in Recovery Mode -> Select Backup and then choose the Restore Option.

Let us know in the comments area below if you need any help or having query while installing the 5.0.2 unofficial CM12 ROM on on your LG G2 Mini.


Aamir Jamal

An Android Geek and audiophile who love to read and write reviews/tutorials about gadgets and new tech stuff. He has written 1007 guides and other posts.

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  1. I am using lg g2 mini and updating my android os and following the steps
    and suddenly said ………

    Turn ON the Nexus 6 while pressing and holding Volume Up…..
    how is possible..
    is mobile model also will be change…

    1. Hello @Ali Waqas. That was a mistake and I have corrected that. Thank you for informing 🙂

      Let me know if you are facing any other issue with your G2 Mini.

  2. Recovery menu: Download the Reboot Recovery in Play Store 🙂
    It’s work me !! 😀
    Sorry for my bad english (Google translate)

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