How to Upgrade your Samsung Galaxy Tab 2 7.0" P3100 to Android Jelly Bean 4.1.1 using Offline OTA

This method is intended for APAC releases, with 4.0.4 firmware out of the box, which in my case come out with P3100XXBLE3. Although these upgrade were intended for XSP and XME (Singapore and Malaysia) but actually APAC firmware are mostly the same, which also contain Bahasa Indonesia.

Notable upgrades: The major difference is that your tab will no longer in tablet mode but in Phablet mode just like Nexus 7. Well it's for you to decide which one is better.

WARNING!: There is a downside by upgrading with this method, that is your phone status will be "MODIFIED". Also you will need to WIPE your internal memory. Do BACKUP first!