Monday, 3 September 2012

How to Install ICS on Lenovo Ideapad A1 [SOLVED]


Lenovo Ideapad A1 is a 7 inch capacitive touch LED display tablet with dual camera and microsd support by default running Android 2.3 Gingerbread operating system but seriously who uses Android 2.3 anymore? Upgrade your Lenovo Ideapad A1 right now for free from Gingerbread 2.3 to Ice cream sandwich 4.0 from this easy to follow, step by step guide.





*IMPORTANT*
Warning/Disclaimer:
Although the recovery has now been tested by several people and there have been no problems reported, there is still a small risk of damage or problems due to unforeseen issues. In the event that something goes wrong, I will do my best to help recover the situation, but I am not liable for any damage incurred. It is up to you to decide if you want to take this risk. If you are not comfortable with the risk, then do not continue!

There are few methods out there for Gingerbrad to ICS upgrade on Ideapad A1 and each of them holds a risk of bricking your tablet. That risk proved fatal to my tablet but i was able to unbrick my tablet successfully. So as far as I know, the method below is the easiest to convert your Lenovo A1 from 2.3 Gingerbread to 4.0.4


  • Please make sure that your data  is backed up before attempting the upgrade
  • Do not use a "phone card reader as a sdcard reader" as it doesn't work and it's pretty slow. 

PREREQUISITES :

  • Micro SD card
  • SD card Reader

STEPS :




  • Download the file Stock A1 Recovery
  • Download ClockworkMod for Ideapad A1
  • Copy ClockworkMod file to the SD card and rename it to update.zip
  • Hold down volume down and turn the power back on, keeping   volume down held until the tablet boots up to an image of an arrow out of a box with an android (this is the stock recovery).
  • Wait whilst Clockworkmod recovery installs. The progress bar should fill up.  
  • Afterwards you should see a blue menu of ClockworkMod recovery.
  • While you're in recovery, select :
  1. Select wipe data/factory reset. Wait until it's completed.
  2. Select wipe cache partition. Wait until it's completed.
  3. Select advanced > wipe dalvik cache. Wait until it's completed. Then shut down the tablet.
  • Take out the SD card and copy in Stock A1 Recovery file keeping the name as it is. 
  • Hold down volume down and turn the power back on, keeping volume down held until the tablet boots up to an image of an arrow out of a box with an android.
  • CWM will open up.  
  • Select install zip from sdcard in the CWM Recovery screen by using Volume Down/Up until the proper item is highlighted and momentarily pressing the power switch to select
  • Select choose "install zip from sd-card"
  • Select the Stock Recovery file and install it.
  • Once the installation has finished, you should see a green tick in a green triangle and the tablet will shut down.
  • Format the sd card.
  • Download the ICS1.2.zip file.

  • Rename the file from ICS1.2.zip to update.zip. Check that your file name is update.zip, and not update.zip.zip (as some users may have unknowingly added .zip to the .zip file)
  • Copy the update.zip file to a micro-SD card. 
  • Turn off your tablet if on. Enter the micro-SD card in the card slot.
  • Hold down volume down and turn the power back on, keeping volume down held until the tablet boots up to an image of an arrow out of a box with an android (this is the stock recovery).  
  • Wait whilst the file installs. The progress bar should fill up.
  • The progress bar will load as shown in the picture and after it's complete, you will see green tick in a green triangle signifying completion.
  • When the updating is completed, turn on the device and go into the ICS-based OS.
Warning : The latest OTA update ( Jul 2012, i.e A107I0_A404_001_014_0116_US) from Lenovo has reportedly caused problems that the Home, Back and Task Switch Soft buttons have been rendered functionless.  Hence, Do not download the update until this issue is resolved or until another update is released (i.e. skip Step 10-12)


– See warning above

10. Go to Settings -> About Tablet -> System Update.
11. This will trigger the LenovoPad update OTA. It will tell you there is an update for this device. Choose to update.
12. Follow the instruction as per the update. This will be the original update from Lenovo, which is good thing.

— See warning above —



  • If you have doubts regarding Flashing cwm on ideapad A1 , Refer to this Tutorial.


-Kaushal