How to Install Android 4.2.1 Jelly Bean ROM on LG Optimus One P500

Now you can easily Update LG Optimus One P500 to Android 4.2.1 Jellybean using this simple guide. In this tutorial we will guide you through how to update your LG Optimus One P500 with Jelly Bean 4.2.1 Custom ROM.But before the tutorial we should let you know some warnings and pre-requisites.


  Disclaimer: Follow this guide at your own risk.Mobotalks Media will not be liable if your device or data gets damaged in any way during the process


  •  This process requires at least 70% battery life to accomplish it.
  •  You must take the backup of the following data such as SMS, Call Logs, Contacts, Images, Music, Videos, Bookmarks, APN (Access Point Names) settings and MMS (Multimedia MessagingService) settings etc. After creating backup of your data you can also restore them.
  •        You should disable the security suites such as antivirus or firewall whatever installed on your Computer and in LG Optimus One P500. As these may cause interruption during the process due to security issue on your system/device.
  •     Navigate yourself to the place / option where you can Enable the USB Debugging on your Galaxy Y device through this path – “Settings > Applications > Development > USB debugging”. Remember to check the USB Debugging option at the end.
  •     Also tick mark and enable Settings->Security-> Unknown sources
  •  You must have ClockworkMod Recovery installed on your device.


How to Install Android 4.2.1 Jelly Bean ROM on LG Optimus One P500

Step 1. Download Jelly Bean 4.2.1 ROM [Filename:] and Google Apps [Filename:]

Step 2. Connect your phone to PC using USB cable.

Step 3. Copy downloaded files to the SD card of your phone. And Disconnect your USB

Step 4. Turn off your phone and  Boot into recovery by pressing and holding Volume Down, Home and Power buttons

Step 5. Wipe the Data and Dalvic Cache or you might brick your device afterwards

Step 6. Select install zip from sdcard, then select choose zip from sdcard. (Locate the Jelly Bean 4.2 Rom .zip file) and select it by pressing Power button.

Step 7. Once the ROM installation process end, repeat the step 7 but choose Google apps instead of ROM zip to install the Google apps package.

Step 8. When installation is completed, go back to the main recovery menu and select reboot system now to reboot the phone and boot up into customized Android 4.2.1 ROM

That’s it. That’s it! .If you have any issues regarding this tutorial then feel free to share your issue with us by leaving a comment.

Myself Prajith Kv and I am founder and chief editor of this blog. Here I write articles related to upcoming technology, gadgets, Internet etc.


  1. Isaías

    Mar 2, 2013 at 9:40 pm

    Is it 4.2.1 or 4.1.2. as title says?
    And what is not working?

    • Prajith Kv

      Mar 3, 2013 at 11:23 am

      sry… writing time mistake….it is 4.2.1 jelly bean..its working..on..p500

      • harshad

        Mar 6, 2013 at 3:07 pm

        Currently I’m using 4.1.1 AOKP, in this almost everything works well except (Speaker Phone Mode while talking which is imp. for regular use )
        & ( Voice because v6 not v7)
        Does this speaker phone issue is still with 4.2.1?

  2. Arman

    Apr 19, 2013 at 2:55 pm

    I just installed it but it doesn’t connect to operator.
    What can I do?

    • bmb

      Jul 22, 2013 at 11:50 pm

      Hello friend, I had the same problem. Can you resolve this?

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