How To Update LG Optimus 3D P920 with Ice Cream Sandwich Android 4.0 Firmware

Optimus 3D LogoWant an ice cream Sandwich for your Android phone? Then you need to wait for few more months as this will be rolled out in the next few months. We will see in the due course of the article on how you can easily apply the beta leaked version of the Ice cream sandwich on your phone. This update comes as a great respite for all those who were eagerly waiting for the update. In an unfortunate event, LG still doesn’t have the time frame by when they will be coming up with the update but not to worry as we are here to come out with regular updates for your device. This Ice Cream Sandwich 4.0 Android firmware comes with the King 3D ROM who is the developer of this Custom Firmware. This is not an official firmware and is no way related to the official firmware launched by LG Electronics.

Before we proceed with the detailed article on how you can apply this update, you will have to go through the pre upgrade instructions and followed by the procedure to apply the update. This all new update of Ice Cream sandwich 4.0 comes along with a whole new bunch of capabilities and functionalities which we have covered on Android Advices few days back. Please note that this is the beta release of the update and not the Official version of the firmware. Be informed that in the process of applying this firmware update, you will have to root the device which will void the warranty. Also, since it is the beta firmware, you may face issues with some of the applications like face unlock and also the NFC functionalities etc as it doesn’t come with the NFC hardware.

Disclaimer: We should not be held responsible in any manner for any damage happens to the device which is very unlikely if you follow the instructions carefully.

Also, we will see on what are the enhancements which come along with this article followed by the screen captures on how this firmware looks like.

Enhancements in Ice Cream Sandwich Android 4.0 ROM

  • Comes with the Optimized RAM,
  • Increased overall Speed of the User interface,
  • Pre loaded with ICS Music Player and Robonto Font,
  • Live Wallpapers of ICS 4.0 are now added,
  • Ringtones as well as the Boot animation is of ICS,
  • 2D – 3D Converter is now part of the standard firmware,
  • LG Apps are now removed,
  • Go SMS Pro Bug has now been removed,
  • Comes with the latest Android Market Place 3.1.5,
  • Go Launcher 2.61 is pre loaded,
  • King Manager comes pre loaded too,,
  • Full deodex apps & Framework
  • Comes with pre loaded with the Busy box, Super user and binary access

Let’s head to the screen captures and see on how this ICS looks like on LG Optimus 3D smart phone.

Screen Captures of ICS 4.0 on LG Optimus 3D:

ICS on LG Optimus 3D ICS on LG Optimus 3D 2 ICS on LG Optimus 3D 3 ICS on LG Optimus 3D 4 ICS on LG Optimus 3D 5 ICS on LG Optimus 3D 6 ICS on LG Optimus 3D 7

Pre Requisites:
There are 5 list of pre requisites which you need to follow before you further proceed so as to facilitate the smoother firmware update.

  • It is very important to enable the USB debugging in your device. The USB Debugging can be enabled from the path USB Debugging can be enabled from the path of Settings > Applications > Development > USB debugging.
  • After this you will have to note that all the Antivirus Suites, Firewalls and other tools like PC Suites should be completely closed in your computer before proceeding or else it may interrupt the process of the firmware update.
  • Ensure that you have created a backup of all your data so that you can then restore the data if there is anything which is lost. With the help of the tips which are mentioned below, you can easily backup and restore the data from / to your phone.

Text messages – Use “SMS Backup & Restore app”,
Phone Contacts – Sync with the Gmail application,
Call Log - Call Log and Restore
Pictures, Music, Videos, Files etc.– Copy to internal / External SD Card,
Internet & MMS Settings – Backup all the settings from the path “Applications > Settings > Wireless and Network > Mobile Networks > Access Point Names

  • You will have to root the device so as to accommodate this beta Firmware which you need to do from the below link which is mentioned below. It is very important to root the device before proceeding or else you won’t be able to update ICS on LG Optimus 3D.

Procedure to Root LG Optimus 3D

Last but not the least you will have to ensure that the device is at least lest with the 70% of the battery charge so as to facilitate the smoother firmware update process and also you will have to disable if there are any sorts of lag fixes there for the LG Optimus 3D installed if any. Please note that just in case if the device is loaded with any of the Voodoo tools then you need to disable them as these generally interrupt the process of the firmware update.


  1. hi ,when i finished the upgrade proccess my lg p920 couldnt read my sim card and the is no gsm network how can i fix this problem please

  2. Can i put this room on su760. Thx

  3. Does it have arabic ??

  4. Can i have the download link for the firmware??… it not working..!!!

  5. Zip is corrupted, and don’t tell me to redownload cause I have a business connection with 0 issues with everything else on the web, so frankly this makes me weary of loading this up onto my phone. And I so want ICS damnit.

  6. This is not the offical ICS OS Fools but a Rom !!!! Now your fucked over and cant even have the phone repaired under warrantie !!!!

  7. OMG i just put it on my phone, n now it has random flashing boxes and i can’t click on anything, Can any one please help? thanks

  8. Jordane Quissanga

    I did all steps mencioned here, step by step, or from begin to the end. The diference that I saw is all pictures posted on this website is very very diferent from the phone, I do not why.

    I agree with Vortecduramax, Bara 93, tyler wewsecv, almost said the same thing, I just don’t know what is wrong with KING 3D ROM, even I cannot find out its official website. Now, my phone is broken ’cause of it. It does not power on anymore.

    I’ll send it to Lisbon, Portugal, to be repaired for free without any fee/charge/fare.

    I just wish much luck for who has it on phone and it runs normally, my best.

  9. The zip file was corrupted

  10. I have V21b without any sd card mounted and just maked factory settings, it stop at step #6 as any other guide i’ve tryed until now… please help!!! T T

  11. The file is asking for an password , HELP!

  12. Hi, when i open the ice cream zip file it was asking for an password help ?

  13. Hey,

    Is this just the Alpha or Beta version or full? Does this has any bugs like inpossibility to use vibration, wlan etc?

    And if it doesnt work and my O3D crashs, am i able to “rescue” it?

    Sry for bad english.

  14. ok i tiried this on on my lg p920 3d and after 3 times it stil wont work.
    my rom version was original and my phone was rooted.

    any idea’s are welcome

    • First thing disable any Voodoo tools on your phone if any.

      Follow the steps carefully in page 2, if you miss single step it will not be updated.

      Thanks You!

  15. Can’t believe Android Advices would fall for this rom being ICS.. meh, trashes your credibility guys….

    Is a Froyo Rom with custom themes.

  16. So…what should I do if my LG Optimus 3D P920 has randomly said it wanted to >>UPDATE<< (Not mentioning software or firmware) and won't let me do anything? I've tried taking the SIM out and turning it back on and off, but nothing seems to work=/ ANY IDEAS PLEASE!!! If it's broken I'm screwed=//

  17. THIS IS FAKE !!!!
    The rom is froyo with custom IC teme !!!!!

  18. how can i update my LG optimus Black P970 to ICE CREAM SANDWICH can some one guide me

  19. This rom is not Ice cream sandwich – it’s theme!
    And this archive is broken!
    you can find KING_3D_ROM_v2.3 by KING4Developers.
    It’s the most recent ROM for LG 3d.

  20. Hi, i have LG Optimus 3D P925g.
    My phone is rooted.
    I did the same things.
    And I have the same error message:
    \Can’t open /emmc/
    Installation aborted.\

    Please suggest.

  21. I:Update location: /emmc/
    Opening update package…
    Missed a central dir sig (at 0)
    E:Can’t open /emmc/
    Installation aborted.

    Is it something wrong about the zip file?

  22. I’ve followed all the instructions. My phone is rooted.
    When I run the install rom from SD card, the phone reboots, accesses the ICS rom and then give me:
    Can’t open /emmc/
    Installation aborted.

    I have downloaded the rom twice.
    The size of both are 277MB.

    If I try to unzip the rom on my PC it says unexpected end of archive.

  23. computer says ics zip folder is empty? will not install?

  24. Is anyone used this zip file and upgrade to ICS successfully with p920?

  25. please hellp?????

  26. root the phone with super one click tool already.
    not quite sure what you mean by giving super user access.

  27. hi
    after installing Work Mod cell phone LG optimus 3D does’nt turn on.please help me.
    what should i do?

  28. I:Update location: /emmc/
    Opening update package…
    Missed a central dir sig (at 0)
    E:Can’t open /emmc/
    Installation aborted.

    Is it something wrong about the zip file?

  29. cant get past the last step keeps aborting while opening the package not sur if file is corrupt or not any help greatly appreciated.

  30. Awweeee….. It Worked On My Samsung Galaxy Y……….Amazing

  31. I got this message:

    E: Can’t open /emmc/
    Installation aborted

    Any thoughts?

  32. Can I root the Canadian LG Optimus 3D with these instructions? It has a different model number: LG-P925G
    If not, are there instruction to root it? Sorry, but I couldn’t find any.


  33. This is Ice Cream Sandwitch theme created by me, for our rom (King_3D_ROM).

  34. Hi, LG 3D doesn’t install THIS ROM so yesterday evening i try to install the famous KING ROM 3D 2.2..and it’s OK !

    There is anyone that try this (and explain us if this started immediately or what to do) ?

  35. how can I upgrade lg p970? or can I use this?

  36. nothing to do, neither with data+cache & dalvik clean ! :o(

    everything appear to be ok at restart (ok..ok..) then my phone reboot immediately (i think with an error): where can i find LOG file?