Update Acer Iconia A500 to Ice Cream Sandwich with Icylicious ROM. It’s Rooted Already

by: Richard GutierrezMarch 2, 2012
3 14 1

After the Ice Cream Sandwich Firmware leak, developers started to make their own Custom ROMs and one of the most stable Custom ROM out there is the Icylicious ROM by ATGAdmin of XD Developers Forum. With this ROM you don’t have to root it because it already rooted once you install the ROM, also he remove some of the Acer application to free some space and make it faster.

If you want to update your device, just follow the simple steps below.


  • Make sure that your device battery is charge at least 60%
  • Backup your device data into your computer.
  • Turn on USB Debugging, on your homescreen tap Menu> Settings> Application> Development. Then, make sure that USB debugging is checked.


  • Acer Iconia A500 (rooted and CWM recovery installed)
  • USB Data Cable
  • Computer
  1. First, download the KJY_2010_Icylicious_REV_12.zip to your computer.
  2. Then, connect your device to the computer using your USB Data Cable.
  3. Next, copy the zip file to the root directory of your SD card.
  4. Disconnect your device to the computer.
  5. Turn off your device.
  6. Go to recovery mode.
  7. Once you’re in the recovery mode, do a Nandroid Backup by selecting Backup and Restore> Backup. (This will make a full backup of your existing ROM, and save it to the SD card. You can restore from this backup, if something gets messed up with the installation.)
  8. Now do a full wipe by selecting Mount and Storage then wipe the following:
    • Format System
    • Format Data
    • Format Cache
    • Go back to main menu and select advance then wipe dalvik-cache.
  9. From the main menu select install zip from Sd card> choose zip from Sd card> then select the KJY_2010_Icylicious_REV_12.zip to start flashing the MIUI 4 ROM.
  10. Finally, go back to main menu and select Reboot system now.

Congratulations, you can now enjoy exploring your new Acer Iconia A500 running on Icylicious ROM (ICS).

  • Dave3486

    Is there anyway to do this with out already being rooted as iam on 3.2 with no root

  • Giri

    This takes away the 3G wireless network option that used to be available on 3.1 / 3.2

  • M McD

    Is there any fix for the transparent green screen overlay that keeps showing up?

    • Booby

      There is no way and once every few seconds it shows up and makes the tablet unusable. To restore tablet to working condition you guys pay us…:)

  • JoeB

    The 3G version is available on another post, this is for the A500 not the A501

  • Skvignesh

    I lost my wifi. Now my wifi is not working..also I can barely work on the tablet constantly and screen saver is show up..It screwed my tablet…

  • ahab

    When I boot into recovery mode I get the android guy with an exclamation. And it goes no further.

  • you guys need to stop messin with things you cant fix you invalidate warranty now your screwed just for tryin to speed up the icecream now its melted and your need to clean it up how ? that is the ?

  • Paul Bulley

    Does this ROM have a UK locale?