how to upgrade android?
i'm use galaxy tab 2 10.1 my android 4.0.3 pleas help me

The first thing that one should look into is the equipment that will be used to upgrade the phone. One will need to have the phone, naturally. A PC that is connected top the internet and loaded with a strong antivirus is also very useful. In addition one will need a secure connection between the PC and the phone, usually provided by a data cable.

Regards
Nicholas

i don't know if this will work cause i haven't tried it.

http://www.androidauthority.com/galaxy-tab-10-1-wi-fi-3g-gt-p7500-cyanogenmod-9-nightly-93525/

http://forum.xda-developers.com/showthread.php?t=1657056

Thanks for the post here....it really helped me

Please follow the below instructins to upgrade android
1) Connect any device from your CPU, which has an android application in it.

2) Download the tool which will upgrade your android from any version to 4.0.3 and 4.0.4.

3) Click on the button “Find Android Device”, it will detect your device automatically.

4) Click on the button “Find Simular OS Platform Ver” to find the match.

5) Click on the button “Upgrade to 4.0.3″, it will upgrade to 4.0.3 by updating data of android 4.0.3.

6) Click on the button “Upgrade to 4.0.4″, it will upgrade to 4.0.4 by updating data of android to 4.0.4.

7) Now restart your device after updating it.