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Overclock Galaxy S3 to 1.8GHz With Ninphetamin3 Kernel

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Galaxy SIII

Right now, the Samsung Galaxy S3 is the fastest Android device out there with the fastest processor ticking away inside, aka the Exynos quad-core processor, at a speed of 1.4 GHz. Some would say any further performance gains are completely unnecessary, but of course, not everyone agrees. Now, you can overclock your Galaxy S3′s CPU up to 1.8 GHz, thanks to the Ninphetamin3 kernel by XDA Elite Recognized Developers netarchy and Hacre.

Here’s a look at all the features of the kernel:

  • Overclocking up to 1800 MHz
  • CPU Voltage Control Interface
  • GPU Voltage and Speed Control Interface
  • Tweaked Deadline Scheduler by default
  • Compiler optimizations aimed at improving performance/battery
  • Removal of Debug overhead for performance/battery improvement
  • Triangle Away compatible
  • Various other tweaks and alterations

Important, please read! Overclocking a processor can be dangerous and cause instability, so be cautious when overclocking your device. Also, different phones have different limits, so your phone might be able to handle an overclock up to 1.8 GHz, while other devices may be stable at the same speed. So if you find 1.8 GHz to be unstable, try overclocking to a lower value. To get answers to some general questions regarding the kernel and overclocking, read this FAQ.

Now, let’s take a look at how you can flash Ninphetamin3 kernel on your Galaxy S3.

Compatibility

This hack and the guide below are compatible only and only with Galaxy S3, model number i9300It’s not compatible with the US variants or other devices. Check your device’s model number in: Settings » About phone.

Warning!

The methods and procedures discussed here are considered risky and you should not attempt anything if you don’t know completely what it is. If any damage occurs to your device, we won’t be held liable.

How to Flash Ninphetamin3 Kernel on Galaxy S3

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  1. First and foremost, make sure you are using a stock based ROM on your phone. This kernel will NOT work with AOSP ROMs such as CM9 or AOKP.
  2. Download and install the software Kies on your computer, which will install the necessary drivers for the phone.
    Download Kies
    You can also use the Galaxy S3 toolkit → here to install only the drivers. Also, if you install Kies, make sure it is not actively running even in the taskbar or it may interfere with the flashing process.
  3. Download the kernel:
    Download Kernel  |  Filename: ninphetamin3-release-1.1.0.tar.md5
  4. Download the Odin PC software. If you are new to this, Odin is what is used to flash stuff – firmwares, kernels, etc. – on Samsung phones. We’ll use Odin to flash the firmware file obtained in step 3.
    Download Odin3 v3.04   |  Filename: Odin3_v3.04.zip
  5. Extract the contents of the Odin3_v3.04.zip file to a folder on your computer.
  6. Now, turn off your Galaxy S3 and wait for it to shut down completely.
  7. Then, put the phone into download mode. To do so, press and hold these keys together: Volume Down + Home + Power till the screen turns on. Then press Volume Up to continue to enter download mode.
  8. Open Odin by double-clicking on the Odin3 v3.04.exe file obtained in step 5 after extracting Odin3_v3.04.zip.
  9. Important! Connect your phone to PC now. You should get the message “Added !!” under Odin’s message box in the bottom left.
    If you don’t get this message, make sure you installed drivers correctly (using Kies or directly) as given in step 2. If it still doesn’t work, try changing to another USB port on the computer and also use the USB ports on the back if you have a desktop PC.
  10. Click on the PDA button in Odin, then browse to and select the ninphetamin3-release-1.1.0.tar.md5 file obtained in step 3 above.
  11. Important! Do not make any other changes in Odin except selecting the required files as given in step 10. Leave all other options as they are. Make sure Re-Partition check box is not selected.
  12. Now, click the Start button to start flashing the kernel on your phone. When the flashing is complete and is successful, you’ll get a PASS message (with green background) in the left-most box at the very top of the Odin, and the phone will automatically reboot. When you see the Samsung logo, you can safely unplug the cable.
    What do if Odin gets stuck or doesn’t do anything: If ODIN gets stuck on setup connection or at any stage of this process after you’ve hit the Start button, and doesn’t seem to be doing anything, or if upon completion of the process you get a FAIL message (with red background) in ODIN, do this: disconnect the phone from the PC, close ODIN, remove battery for 4-5 seconds, re-insert it, turn phone on in Download mode again, and do the procedure again from Step 8.
  13. After the phone reboots, you can overclock the processor using an app such as SetCPU or No-Frills CPU Control or any similar app. Again, be careful and test different overclock frequencies to find the most stable overclock.

The Ninphetamin3 kernel is now installed on your Galaxy S3, which will let you overclock the processor inside up to 1.8 GHz. Try it out, and let us know how high your device is able to overclock and whether you notice any performance improvements, in the comments below.

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  • mr supreme

    why is the admin not replying to any ones message, clearly you can see that this kernel after applied causes the phone to boot back up with a black screen, and I would advise anyone who attempts to try this to BACK UP your phone data using clockworks recovery by holding down (volume up, power button and home key) all at the same time until the clockwork recovery appears, then use the volume up/down keys to navigate and power button to select, you can find a backup data to sd card in there. This should of been the first thing in this thread!

  • http://www.facebook.com/themisterunknown ジェイスン ・リー リー

    Help.. my phone cant use the camera…. pls help… and i cant restore my phone even i format the phone and sometime it freazze phone too… can anyone send me the back up file or change back to 1.4ghz??? pls.. T.T just bought the phone..

  • hsjdis

    Phone does not boot anymore and stock ROM can’t be installed any more.

  • P

    Bricked my phone too, display went black, led’s stay on and nothing happens. Thanks!

  • sykosykes

    Bricked my phone. Good thing I had recovery!

  • sykosykes

    Bricked my phone. Good thing I had recovery!

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