CyanogenMod 10 ROM Jelly Bean 4.1 Upgrade for LG Optimus GT540


If you own a LG optimus GT540, then this is a good news for you because XDA Senior Member DevSwift1 has released a CyanogenMod 10 ROM upgrade for it which means that it is now possible to run Android Jelly Bean 4.1 on it. The ROM is yet under initial stage which means that some of the features are not working fine on it. So it is not a recommended upgrade but yet if you really want to taste jellybean, then you can surely go for it. Following is a quick update about the features working properly and also those which are not.

Working Properly

  • GSM
  • UMS
  • GPS(no error reported)
  • WiFi

Not Working Properly

  • Radio
  • WiFi Tethering
  • Camera
  • Everything Else.

Important Note: Although, we have taken the ROM link from a very reliable developer(XDA-Forum), yet go for this upgrade at your own risk as neither this site nor the author would be responsible for any problem in upgradation. However, this happens rarely. Also you would lose warranty of the hardware(if any).

The upgradation Process has been divided into two parts:

  • Pre-Upgardation.
  • Final Upgradation.

Please follow all the steps given below in the order they are given and donot skip any step in between.


Follow these steps with a little care. If you have any problem, feel free to ask-

  1. First of all check the phone version. It should be LG Optimus GT540 only (Check at Settings> About Phone). Do not upgrade if you have some other version.
  2. We advice you to take a backup of your existing ROM by using Nandroid Backup and Restore App from XDA.
  3. You can also take backup of some important data such as SMSContacts etc.
  4. Make sure that your Optimus GT540 is at-least 85% charges. If it isn’t, we advice you charge your phone first.
  5. Next, disable all the anti-virus on your Device. Also uninstall all the Kies from your computer.
  6. Now enable USB Debugging on your cellphone (Option available at Settings > Applications > Development > USB debugging ).
    galaxy s3 usb debugging Samsung Galaxy S III Android 4.0.4 ICS XXALF2 Firmware Upgrade
  7. Your device is now ready to be upgraded.

Final Upgradation

  • First of all, download the CyanogenMod 10 ROM for Galaxy S3 from the official development page on you PC.
  • Next, download the official Google Apps Package.
  • Now connect your phone to PC via USB cable and copy both downloaded files on internal SD Card of your Phone.
  • Now turn off your Optimus GT540 and reboot it in ClockworkMod Recovery. This can be done by pressing and holding HOME + Power Button together.
  • Now from the options available on the screen, Select “wipe data/factory reset” and then further select Yes when prompted.
  • Now,  you need to select the Installation zip file from sdcard(one you’ve copied from PC). For this select “choose zip from sdcard” and then select the ROM package from SD card.
  • When it is completed,  do the same and install the second package i.e. Google Apps .
  • When the installation is complete, go back to main menu, and select “reboot system now” and it will

With this you’ve successfully upgraded to Cyanogen Mod 10 on your Optimus GT540.