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Update Iconia Tab A100 to Ice Cream Sandwich [Official ROM]

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Calling all Acer Iconia Tab A100 owners! If you were feeling jealous of the Iconia A200 getting an official update to Ice Cream Sandwich (ICS) Android 4.0.3 a few days ago, then this news should help in bringing down that jealousy a little. An ICS firmware for the A100 was leaked on XDA and is now accessible to people looking to taste Ice Cream Sandwich on their A100. The firmware seems to run pretty well according to reports, so it could mean that the official release isn’t too far away.

This firwmare is an unofficial leak but we’re pretty sure people will have no qualms in trying it out anyway because frankly, unofficial or official, we like it! Do note that since this is a leaked firmware, bugs and problems are to be expected.

Read on to find out how to flash this firmware on your Iconia Tab A100.

Compatibility

This ROM and the guide below is compatible only and only with the Acer Iconia Tab A100. It’s not compatible with any other device and may render an incompatible device unusable. Check your device model in Settings » About phone.

Warning!

The methods and procedures discussed here are considered risky and you should not attempt anything if you don’t know exactly what you are doing. If any damage occurs to you or your device, including a bricked, non-functional device, we won’t be held liable. You have been forewarned!

Pre-installation Requirements/Tips

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  1. Sufficiently charged battery, at least 50% is recommended.
  2. [Optional] This procedure will not wipe your apps, data and settings. But to be on the safe side, backup your Apps and important data — bookmarks, contacts, SMS, APNs (internet settings), etc. This Android backup guide would help you.

How to Install ICS Firmware on Iconia Tab A100

  1. Download the ICS firmware.
    Download Link  |  Filename: Acer_AV041_A100_0.002.00_WW_GEN1.zip
  2. After downloading the above file, rename the file from Acer_AV041_A100_0.002.00_WW_GEN1.zip to update.zip on your computer.
  3. After renaming the file, transfer it to the root of your external micro SD card on the A100.
  4. Turn off the phone.
  5. Boot into recovery by pressing the Power button while holding the Volume Up button till the device boots into recovery, then let it go.
  6. The flashing procedure will begin automatically.
  7. After the flashing procedure is complete, the device will reboot itself.
  8. Wait for a while for the Tab to boot up, then enjoy using Ice Cream Sandwich on your Iconia A100.

So there you have it. Ice Cream Sandwich is up and running on your Iconia Tab A100 and should keep you happy till the official firmware is released. Share your thoughts on the firmware in the comments.

Published: 
  • http://www.facebook.com/jerrad.colaire Jęrråd Cöläįrë

    do you need wifi??

  • http://www.facebook.com/OneSavage02 John Savage

    No Cam Problems anymore thank u

  • Alfonso

    Hello hope somebody can help me, my dougther did turn off the tablet while was updating ICS from the acer services, the problem is that wasnt finish and now doesnt turn on but some times, and only to say that the tablet is restarting, nothing more…,,, so now I am trying with this method you described here, but come only the famous green triangle, I did change update.zip, and zip.zip, nothing,,,, hope can help me,, thaks a lot for u time

  • http://www.facebook.com/arisarnado Aris Arnado

    Hello guys. Just updated to ICS using this guide. :) Thanks a lot! Worked without no problems :)

  • Jam Traveller

    for those who have problems with the link above. try downloading the updated ROM. on the top bar of the download page it should show 
    Files >> Firmware >> Iconia Tab A100 >> Acer_AV041_A100_0.002.00_WW_GEN1. click on Iconia Tab A100 and choose the latest update. i got it to work!

    thank you!!

  • D3hilton

    Just noticed the link on this page is adding a ; after the zip, so that’s why I got the green error. Be sure you save as update.zip

  • Jam Traveller

    ive been trying this… have my 2GB SD on. only the update.zip on it… i get the droid with triangle and ! .. :D help

    • Jam Traveller

      is there an A100 Gen 2? im gonna try re-downloading the update again.

      • Jam Traveller

        i re-downloaded the file. still getting the same error. the triangle with ! on it. 

        • http://www.theandroidsoul.com/ Kapil

          Are you renaming the downloaded file to update.zip or not. You know, take care that your computer shows you file extensions (like .exe, .zip, .tar, etc.) of all filenames. Look for it and ON this option. Otherwise, you might rename it as update.zip.zip because file extensions are not shown by default. Or simply check file’s properties to get full name of the file.

          • G00zfraba

            You are awesome sir! I feel ashamed that I was renaming it update.zip.zip 

          • http://www.theandroidsoul.com/ Kapil

            Ah ok. Happens! Glad you got it working :D

        • Jam Traveller

          update. i got it to work. what i did was download the latest ROM from the link above. see my earlier comment.

  • iaroot

    How does one revert to the factory image so as to allow the “corporate standard” upgrade once it is available?

  • http://twitter.com/GemZombie Jesse Gearhart

    best thing to do is download the ROM on a PC, put your SD card on the PC and move the zip file (renaming it to update.zip) to the root of the SD card.  Doing the same from android can be confusing (it’s not always clear that you’re moving the files to the right location).  I had the same problem until I did that, and it works fine.  ICS is running great on my a100, with a few small quirks (that are sure to be fixed before it’s official release):  Camera preview, occasional response from touch screen (Angry birds), and Chrome Beta will crash when you hit “settings”.

    • Jam Traveller

      this is what i did. except used the data cable.. nothing yet. 

  • Brett6952

    so i do everything as said and when its put into recovery mode i get the android symbol with a triangle and an exclaimation point in the center. after it finally starts up it is still running honeycomb

    • Lankyj

       Did you ever get it to work?  I’ve tried several times over the past week, and same issue!

  • Justin M. Bennett

    The SD card MUST be empty with only update.zip on it.  Great ROM; the camera preview (front facing) seems a bit fuzzy, but takes great photos.

  • Gene

    Worked great, thanks! Process took about 10 mins.

    • http://www.theandroidsoul.com/ Kapil

      Cool!

  • David Boriack

    awesome :) thanks trying now

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