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Update LG Optimus One P500 to Android ICS: A Step by Step Guide

Updated on November 13, 2012

LG Optimus One Update

LG Optimus One P500 is low cost popular Android device. There is no chance of any official LG Optimus One ICS update for such a low end device but do not worry there are other ways too. You can update LG Optimus One to Android ICS by just following this step by step tutorial.

Yes, you have guessed it right. This update of your phone will be done using custom ROM. LG Optimus one update with ICS is not that tough. See the process.

Be Careful about these:

Before jump starting the process of upgrading Optimus One to Android ICS you should read these carefully:

i) Do not do it alone if you are a complete novice in this type of work. Try to seek help from an expert and experienced friend to be in the 100% safe side.

ii) This process may not be successful each and every type in every device.

iii) Though the relative risk is too low the author or the site will not be responsible to any damage to your device or data loss.

iv) Keep your Optimus One’s battery as charged as possible. A minimum of 60% is a must for safety.

v) This ROM is in beta stage and so there may be some slight bugs.

vi) The camera may not work after the update.

vii) This ICS on Optimus One is not the official version and so a bit or two minor bugs may be existed.


a) A well charged LG Optimus Black P500 Mobile.

b) A PC (or Laptop/Netbook)

c) An USB Cable

Primary Stage:

1) Your Mobile must be rooted. If it is not rooted then read how to do it from here.

2) Custom Recovery must be installed on your phone.

3) Now you need the CM9 ROM file to be downloaded to your PC.

4) You should have to download gapps to get Market (Google Play) and other necessary built in apps.

Main Stage:

Now it is the time for main actions:

i) Connect your LG P500 with the PC using an USB cable.

ii) Transfer the downloaded CM9 ROM file from PC to the root of mobiles SD card.

iii) Now disconnect the device.

iv) Switch it off.

v) While switching on hold HOME-VOLUME DOWN and POWER these three buttons simultaneously to boot into the recovery mode.

vi) Now select Backup/Restore to do a NAND backup.

Backup all files for safe keeping. You can restore your mobile to previous state using this NAND backup


Final Stage of LG Optimus One Update

This is to last stage of the ICS update to LG Optimus P500:

a) Go back to Recovery mode main menu.

b) Select Wipe data/ factory reset.

c) Now select Wipe Cache.

d) Select also Wipe Dalvic Cache.

e) After this cleaning you should do the installing. Select Install Zip from SD card and find out CM9 ROM file.

f) Start installation and wait for some time. This ICS ROM installation process will take some time.

g) Now install gapps to get Android Market and other apps.

h) After the completion of the installation reboot your mobile.

i) Congratulations! You have done it. The phone shall be rebooted to ICS. This LG Optimus One ICS update process is complete now.

Enjoy a whole new user experience in your LG Optimus One using Android ICS.


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    • profile image

      Preetham Paul Socrates.P 4 years ago

      Thanks for the upgrade it is working great.. But I saw these major problems.. Some one please fix it..

      1. After restarting the applications in sd cards is not working, not showing too when i tap the short cuts it's showing the app isn't installed on your phone.

      2. The GPS is not working..

      Please some one fix it....

    • profile image

      danny 4 years ago

      tienes que actualizar la base band

    • profile image

      Kevin 5 years ago

      i done upgrade my lg optimus p500 but i don't have a signal and camera does not work.

    • itsbejohere profile image

      itsbejohere 5 years ago

      now signal is ok but camera not working good.

    • itsbejohere profile image

      itsbejohere 5 years ago

      i have installed as said above but no network signal?

    • profile image

      Krim 5 years ago

      what doesn't work with this ICS rom?

    • serif profile image

      serif 5 years ago from india

      I done this its working but my sum network locked can u help me to unlock my sim network coz after I done my log optimus one in aokp rom n my sim card lock pls help me to unlock that.....

      Hai vivek,

      Don't upgrade you mobile os after unlocking .If your mobile phone is unlocked one, it retains again network locked.So you need to unlock your mobile phone.You must unlocking your mobile at trusted one.You get safe unlocking service at .Here they provide also Lg global unlocking service...

    • profile image

      vivek 5 years ago

      I done this its working but my sum network locked can u help me to unlock my sim network coz after I done my log optimus one in aokp rom n my sim card lock pls help me to unlock that

    • profile image

      Nathankmk 5 years ago

      theres a zip file for this fix its called funny-sim

    • profile image

      ALi 5 years ago

      Camera doesn't work and no network

    • pinappu profile image

      pinappu 5 years ago from India

      I am happy to know it.

    • profile image

      swami vartak 5 years ago

      thanks it worked