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How to Overclock Samsung Galaxy S2 1.5Ghz 1.8Ghz 2Ghz

May 12, 2011 | Author:

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galaxysii_setcpuWorld’s fastest gets even faster: Samsung galaxy S2 has now been overclocked from 1.2Ghz to 1.5ghz & even 2Ghz woot!

The overclock comes from the developers of SetCPU who  has now managed to take the SGS2 to a whooping 1.504 GHz,and yielding Quadrant benchmark scores of over 4000. Truth be told, he was actually take it all the way up to unstable 2 GHz and quasi unstable 1.8 GHz. The only problems at these frequencies is that we use high voltages that heat up the processor and phone too much, beyond safe limits.

Note from developer:

I have successfully overclocked the new Samsung Galaxy S II to 1.504GHz. This speed is enough to allow it to achieve really high benchmark scores like over 4000 points in Quadrant! 1.5GHz is a 25% overclock and makes this fast phone even faster and snappier in day to day usage.

I haven’t gone crazy on the voltages – 1.504GHz is stable at 1375mV on my device. Depending on your device, there may be even more headroom. I’ve gotten speeds of up to 2GHz to boot with instability (my unstable 1.8GHz Linpack run is currently in the Linpack top 10), but at very high voltages and temperatures. Leave it up to other developers to give you higher/more dangerous frequencies and voltages. If you stress the CPU a ton the phone will become hot to touch

galaxysii_4k_quadrant

How to Overclock Samsung Galaxy S2


1. Use odin3 and the USB drivers for Windows, details here.

2. Grab the kernel. It is a tar file for odin with the overclocked kernel and a initramfs with proper modules for the kernel:http://setcpu.com/files/galaxysii_oc_v1.tar
3. Reboot the phone into download mode using ADB:
adb reboot download
4. Flash the kernel using odin3 by placing the tar file in the PDA section and pressing “Start.”
5. The phone will reboot automatically.
6. Use SuperOneClick to root your phone if you haven’t already. ADB should have root access with this kernel so it’ll just work.
7. Grab SetCPU and try 1.504GHz.
Source code (with relevant commit for the overclock. I also enabled the interactive governor in the config): https://github.com/coolbho3k/galaxysii_oc

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Comments

  • Brickwalker5

    Nice!, but I have a doubt: my samsung galaxy s2 is factory unlocked. So, my question is: to overclock my samsung galaxy s2 factory unlocked is necessary and required to root your phone??. Thanks

  • Asdasd

    yes it is necessary

  • Kh0206

    Very Funny that the Samsung (bigger) is on the left in the intro, and then is on the right in the demo, when you cant see the brand.

    Hmmmmmmmmmmmmmm

  • http://twitter.com/gzaeraholo Gustavo Zaera Holo

    This is very cool! Do you have an overview of the impact on the battery in everyday usage?

  • N1kka

    what is the Temperature ..?? u didn’t metioned it

  • http://www.realsmartphone.blogspot.com Smartphone Heaven

    I just want to know that this is safe with phone or not.

  • Guitar_boy

    This is great feel the difference! got 4025 on my galaxy s2:)

  • Wbo

    Try the Kernel from ninphetamine. Overclock to 1.6ghz. Ik get 5082 in benchmark!

  • KeyDeaTh

    Hi There, very nice guide to OC, i have mine. i have a noob doubts, is the kernel version cares about how to Grab the .tar? mines says UMMK1 or thats isnt important? ty. btw i have andriod 2.3.6.

  • KeyDeaTh

    Hi There, very nice guide to OC, i have mine. i have a noob doubts, is the kernel version cares about how to Grab the .tar? mines says UMMK1 or thats isnt important? ty. btw i have andriod 2.3.6.

  • GoodEviL

    it’s great thx
    but i have problem plz plz plz help me :(
    i have S2 with 2.3.5 Droid & the kernel “was” XWKJ2, and the Baseband is I9100XXKI4, OK
    after i Flash the Overclock kernel ( the one in the description )
    every thing is working just great but the screen is become very very very very brightness high, am getting a headache because of it.
    so plzzz can you help me :( :(

  • GoodEviL

    and i can’t change it in setting ether
    am putting it on 50% and it’s like 200%

  • Saimoncz

    try 
    2.6.35.14-Illusion-xTreme kernel, it’s amazing. With 1,72GHz i just got 5572.

  • Me_olie

    so where is the grate kernel that can let us oc to 1.8 or 2 ghz ? , max i ocd my phone to 1.72 ghz with illusion xTreme so im waiting for the 2 ghz kernel because i cannot find it anywhere on the internet …

  • laz

    will this work for the s2 epic?

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