[Galaxy Tab 2 7" Android Development] LeftyGR:
Disclaimer: You are not a robot. You are capable of making your own decisions. Anything you choose do to your device is your business, so anything that may happen (lost data, bricking your device, zombie apocalypse) during this process is no fault of anyone but you.

Prerequisites: Your device must be rooted with a STOCK Samsung ROM specific to the Galaxy Tab 2 7". I have tried this on my GT-P3113 and have successfully flashed it's official firmware, the P3110 JB 4.1.2 firmware for Hong Kong and Croatia models, and the P3100 JB 4.1.2 firmware for Hong Kong. So, my point is THIS SHOULD WORK FOR ALL GALAXY TAB MODELS.

This will tell you how to install ANY Samsung Updated firmware made for the Samsung Galaxy Tab 2 without a computer. BE SMART, meaning only flash the firmware that is compatible with your device!!!

Before you do anything, backup your device!!

FIRST: Do the following to get all the tools required to do this:

1. Download the following files to your SD Card:

__A. Download the official update from here . On this page in the left column, there is a dropdown menu. Choose the device you are looking for to get the list of available firmware you can download.

There is a known issue with downloading from this site and getting the file to fully download. Suggestions to make it work: try a different browser.

__B. Download from here:

____a. Mobile ODIN Lite apk from the first post and hit "thanks"

____b. MobileODIN_FlashKernel_P31xx-v2.0.apk from the fifth post and hit "thanks"

__C. Download CWM-SuperSU.zip from here and hit "thanks"

2. Install ZArchiver from the Play Store (or anything else that can de-compress a .tar file)

3. Not required, but strongly recommended to read the info on the Mobile Odin Thread. (you can do this while you wait for stuff to download)

SECOND: Do the following to get ready to perform update:

1. Using ZArchiver (or any other app you use to manage files), extract (unzip) the file you downloaded in step 1 A. Then change the filename extention from "xxxxx.tar.md5" to just "xxxxx.tar".

2. Using ZArchiver (or whatever you downloaded) extract (unzip) the file you just renamed.

3. Install the Mobile Odin Lite apk. Don't open yet.

4. Install the MobileODIN_FlashKernel apk.

5. Ensure your battery is GREATER than 50%.

THIRD: Procedure:

1. Open Mobile Odin light, and do the following:

__A. Choose "Open file..." from the list

__B. Navigate to, and choose the update file (the one you renamed to a .tar file and then unzipped) and select it.

__C. Choose "OK"

__D. Select "Recovery" from the list. On the pop up window that comes, choose "clear".

__E. Now, choose "Flash firmware" from the list and accept any prompts that come up.

- - - Your device will reboot and Mobile Odin will do it's thing- - -

2. In recovery, it may ask you to "Install untrusted zip". Do it.

----- SO FAR you have done nothing to lose user data. HOWEVER, if you are flashing a firmware not specific to your device (in other words, if you have a GT-P3113 and are flashing firmware for a P3110 or P3100), I HIGHLY RECOMMEND YOU WIPE DATA/FACTORY RESET, at this point.

3. In recovery, install the SuperSU zip you downloaded.

4. Reboot your device.

And it really is that easy. Once you reboot, you may need to make a few changes if you are flashing firmware for a model from a different region than you are in. Language, keyboard, etc...

Good Luck!!!