Status 7 Error

http://forum.xda-developers.com/showthread.php?t=2522762

How to root

Probably one of the better one: http://www.androidauthority.com/how-to-root-samsung-galaxy-tab-7-plus-3g-p6200-39037/

Samsung Galaxy Tab Plus P6200 to Android 4.1.2 Jelly Bean Official P6200XXCM3

http://forum.xda-developers.com/showthread.php?t=2295215

Recovery vs Download

See this link: http://en.miui.com/thread-13321-1-1.html

Upgrading my Galaxy Tab 7.0+ from 3.2 to 4.4

Here's what I learn.

1. First root your device:
http://www.ibtimes.co.uk/galaxy-tab70plus-gtp6200-root-android412-jellybean-clockworkmod-470046

2. If you have MD5 hash value is invalid, refer to this post:
http://donandroid.com/fix-odin-md5-hash-value-is-invalid-error-1060


3. Install ClockworkMod Recovery:
https://blog.flexispy.com/install-update-clockworkmod-custom-recovery-rooted-android-phone/

4. Now go ahead and install the ROM:
http://anas-aces.blogspot.sg/2014/09/cara-upgrade-samsung-galaxy-tab-70-plus.html


--------- Update

OK, here is what finally worked for me.

1.. Install TWRP (using ODIN 3.07)
Get the latest from here: https://www.androidfilehost.com/?a=show&w=files&flid=10305

2. Download Custom firmware from here:
https://www.androidfilehost.com/?w=files&flid=10297

3. Download and Install Google Apps from here:
https://gappsofficial.com/