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Speed up AT&T Galaxy Note 2 by Overclocking your Android phablet

The best method to use when trying to bump the speeds or improve the performances of your AT&T Samsung Galaxy Note 2 is the overclock one. Even though many might say that rooting or updating with a custom ROM firmware should be enough, you can use your phablet on its full power only by increasing the CPU frequency, an operation which is dubbed as overclocking your Android device. So, if you want to test your handset on full power, use this guide and learn how to overclock the AT&T Galaxy Note 2.

Bumping the speeds can be extremely useful especially if you use your handset for multitasking, watching HD movies or playing 3D games. Now, even though the Note 2 is a powerful device with great specs and features, you can still take more advantage of its capabilities. You can do this by removing the factory restrictions and default settings and in a few words in increasing the CPU frequency. So, overclocking is the answer, along with gaining root access and installing custom ROMs.

Since the overclock process is a complex one, you can apply the same only after gaining root access and flashing a custom kernel. Now, usually a custom kernel comes included on the custom ROMs packages though some custom firmwares may come with stock kernels instead. At this point, if your AT&T Galaxy Note 2 is powered by a custom ROM check if the kernel is a custom one and if overclocking is enabled on your phablet. If not, below you can learn how to enable overclocking by flashing a custom kernel.

As mentioned, root access is required. Well, besides you should also install a custom recovery image on your Note 2 because the stock recovery can’t be used when applying custom kernels. So, unchain the system of your device and then flash a custom recovery like CWM or TWRP recovery. Finally backup the phablet data because a wipe will be applied – your data, personal info and accounts will be erased. Complete a full backup for saving all that’s important to you (including EFS and internet settings) and then also make a Nandroid backup for saving the current software.

Overclocking means increasing the maximum frequency on which the processor is running. That’s why you can improve the speeds and upgrade the performances. Be careful though as by increasing the frequency to high, you might end up in dealing with battery drain issues – for avoiding the unpleasant situations increase the frequency with only 10-20%. You can learn more aspects about the overclock operation by reading the guidelines from here.

Then, ensure to apply this step by step guide only for the AT&T model of the Samsung Galaxy Note 2; for overclocking the Verizon version use this tutorial. The next steps are compatible only with the mentioned phablet so, don’t risk anything by messing things up – you can end up in bricking your Android powered device.

On this tutorial it will be necessary to: use a computer, your Note 2 and the USB cable; deactivate the antivirus, antimalware, Firewall protection and any other security program that runs on your computer or on your smartphone; on your phablet go to “Settings -> Applications -> Development -> USB debugging” and check the last option – the USB debugging box; charge the battery of your device – only if there is less than 60% power left, else you can skip this step; stick to the lines and steps detailed here and don’t apply things by yourselves.

The warranty of your AT&T Galaxy Note 2 will get void; the overclock process in an unofficial operation that has nothing to do with Samsung or with Google, so be careful when performing the steps described below. Do note that the warranty can be restored as soon as you downgrade your phablet to stock Android Jelly Bean OS, or when updating with an official Android update provided by Samsung, or AT&T.

How to install a custom kernel on AT&T Galaxy Note 2

  1. Go on this page and download the custom kernel – SaberKernel.
  2. Save the file on desktop and don’t unzip the kernel package.
  3. Copy paste the downloaded file from the computer to your phablet – first connect your handset with the computer.
  4. Then unplug the USB cable.
  5. Turn off your smartphone.
  6. Reboot in recovery mode – press Volume Up, Home and Power buttons together.
  7. Use recovery and select “wipe data factory reset”, “wipe cache partition” and “wipe dalvick cache”.
  8. Then return and select “install zip from SD card” and “choose zip from SD card”.
  9. Pick the kernel file and install it on your Note 2.
  10. When the installation process stops, return to main menu of recovery and select “reboot system now”.

How to overclock AT&T Samsung Galaxy Note 2

  1. From Google Play download the SetCPU app or the AnTuTu CPU Master tool.
  2. Install the app on your phablet.
  3. Run the tool.
  4. Use the prompts and options for adjusting and increasing the CPU frequency.
  5. Don’t select the “save on boot” option.
  6. Close the program and enjoy the increased power.

Congratulations, you have upgraded your AT&T Samsung Galaxy Note 2. The CPU has been overclocked so now you will receive more power and speeds from your phablet. Remember that you can anytime update with a custom ROM firmware for improving the performances and customizing the Jelly Bean OS. Stay close for further step by step guides and share your thoughts and impressions with us by using the comments field from below.