What is rooting, custom rom, kernal etc...

What is Rooting :

“Rooting” your device means obtaining “superuser” rights and permissions to your Android’s software.
- With these elevated user privileges, you gain the ability to load custom software (ROM’s),
- install custom themes, increase performance, increase battery life, and
- the ability to install software that would otherwise cost extra money (ex: WiFi tethering).

Rooting is essentially “hacking” your Android device. In the iPhone world, this would be the equivalent to “Jailbreaking” your phone.

What are the Advantages of Rooting?

Custom Software (ROM’s) :

You may have heard of people loading custom “ROM’s” on their devices. A “ROM” is the software that runs your device. It is stored in the “Read Only Memory” of your device.

There are many great custom ROM’s available that can make your Android device look and perform drastically different. For instance, you might be stuck with an older Android device that is stuck on an older version of the Android OS and it is not getting any of the newer updated versions of Android.

With a custom ROM, you could load up the latest and greatest available Android versions and bring that antiquated device up to par with some of the newer ones. There are lots of great ROM’s available for many different devices and it is up to you to find the one that best meets your needs.

Custom Themes :

Themes are basically the graphics that appear on your Android device. Rooting your device allows you the ability to fully customize just about every graphic on your device. You can load custom themes that totally change the look and feel of your device.

Kernel, speed, and battery :

There are many custom ROM’s and apps available for rooted devices that will allow you to drastically improve the performance (speed) and also extend battery life on your device. A lot of developers tweak the kernels (layer of code that handles communication between the hardware and software) for added performance, battery life, and more.

Baseband :

Rooting your device grants you the ability to update the Basebands on your smartphone. The Baseband is what controls the radio (frequencies) on your device. By updating to the latest Basebands, you can potentially improve both the signal and quality of your phone calls.

Latest Versions of Android :

As mentioned earlier, custom ROM’s can allow you to update to the latest version of the Android OS before they are officially released.
This is a great feature for those who are tech-savvy and want to stay on top of the latest and greatest software updates before it hits the mainstream crowd. This is also useful if you have an outdated device that is no longer being updated by the manufacturer.

Backing up your device :

The ability to easily backup all of your Apps and Data is one feature that is sorely missed on the stock build of Android devices. But if you root your device, backing up everything on your device (both apps and data) becomes a simple task. Having Titanium Backup or MyBackupPro is a must have app for anyone who has rooted their devices and wants to backup and restore their phones. Both are available from the Google Play.

Unlocking Additional Features :

By rooting your Android device you also gain the ability to unlock some features that your carrier may charge for. One example is enabling free WiFi and USB tethering, which many carriers charge money for. Now, I’m not suggesting you do this. But I did want to make you aware of the fact that it is possible to do this. However, your carrier may catch on to the fact that you are using your device as a free WiFi hotspot and figure out a way to charge you for it. So use this feature at your own risk!

What are the Disadvantages of Rooting?

OTAs and System Updates

You may find that after rooting, updates provided by Google or through Service Station may not work if applied. Some updates may revert you to non-rooted status, cause a boot-loop or brick your device. To apply these updates, you may need to "unroot" / "return to stock" (out-of-the-box state) to apply the update(s). This is where (after rooting again, of course) having a backup to restore can be very helpful.


The number one reason not to root your device is the potential risk of “bricking” it. “bricking” your device means screwing up your phone software so badly that your phone can no longer function properly and is pretty much as useless as a brick. You would likely need to purchase a new Android device since the manufacturer of your device will void the warranty after any attempts at rooting. But bricking is rare.

Boot looping

This is when the device shows the boot animation, etc then reboots to do it all again to infinity. If this happens, it's typically because of something the end-user has done. Examples include: Applying an incompatible update, incorrectly rooting, etc. This is NOT a normal byproduct of a successfully rooted device.

Can I Unroot my device if I change my mind?

Yes. You would need to do some research for your specific type of device.

How do I learn how to root my device?

Unfortunately, there is no easy way to teach someone how to root their Android device. Each device has a unique method to rooting and some research most be done on your part. Have fun and good luck to all of you! I hope you found this lesson on rooting to be helpful.

source : http://www.s3forums.com


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