Like all liberation processes, the risks of the procedure are borne by the user. As Android is based on Linux, rooting means modifying the Galaxy Tab to become a super user, which leaves control of the entire system in our hands. From there you can install the ROM that we like the most or even a PC operating system such as Ubuntu.
This tutorial is designed and tested for WiFi terminals with Honeycomb Android 3.2. The best thing about this system is that it does not need the official Kies application to connect the device to the computer or the Windows program Odin, which allows flashing firmware or modified ROMs.
These are the steps to follow: First of all, you have to fully load the tablet. We also need an SD card where to download the file root.zip from the XDA Developers forum. After inserting it into the device, it must be turned off completely. When you turn it on again, you must do it in Recovery mode (pressing and holding the volume increase and power keys at the same time).
When the text #MANUAL MODE # appears and the Copying and Appling messages, just release the volume button. A menu will appear in blue called “Android system recovery”. Then use the lower volume button to go to “apply update from external storage” and press the power button to select it. With the same key you have to go to the root.zip file that we had downloaded to the external card and press the ignition again to select it.
The blue menu will disappear and the expected “installing ROOT” will appear in the yellow one. It means that everything is going well. Now you just have to wait for it to finish and for the blue menu to return and, with the same combination of volume and power keys, select the option “reboot system now” and let the system reboot. Finally, in Google play you have to download and install the Superuser app. You are now in control of your Galaxy Tab 7.7.