`` Galaxy S I9000 - Overclock & Increase Volume by 300% with Semaphore Kernel on XXJVT 2.3.5

Galaxy S I9000 – Overclock & Increase Volume by 300% with Semaphore Kernel on XXJVT 2.3.5

Semaphore KernelOne of the highest Selling smart phone ever by Samsung and most customizable phone of the lot when it comes to the availability of the custom ROM firmwares, yes you have guessed it right its none other than the mighty Samsung Galaxy S GT I9000. So, it was the last time when we saw on how you can easily install the latest version of Gingerbread 2.3.5 firmware and now in this article we will see on how you can easily update your phone with the most powerful ever custom kernel which is called as the Semaphore kernel.

This update comes as a fix for all those who were experiencing issues even after installing the latest version of Gingerbread 2.3.5 version of firmware. This kernel comes with a host of advantages to wrap it up in short, this kernel will empower your Samsung Galaxy S GT I9000 with the following benefits:

Over Clocking facility: With the help of this Semaphore Kernel you can easily and safely over clock the processor speed to speed / clock new highs when it comes to the processing speeds. You can also measure the clocking speeds with the help of the benchmarking tool called the Antutu tool and also this gives rise to the higher quadrant ranks for better performance than ever.

Voodoo Sound Control:
When you will be updating with this kernel which we will see in the due course of the time, you will be able to experience up to 300% higher volume than what you currently hear in your headphones providing you a louder music even when compared with the Apple iPhone or say iPods. This Voodoo Sound control capability comes by default with this kernel.

Color temperature:
With the help of this Semaphore ROM you will be easily able to increase / decrease / modify the color temperatures which you see in your Samsung Galaxy S GT I9000 and can experience the Bravia engine kind of experience which is the proprietary of the Sony Electronics.

Pre Requisites before flashing Semaphore kernel

  • So after following the pre requisites from the above link, you now will have to proceed to follow the instructions in the next page. Please note that it’s very important to ensure that you are on XXJVT 2.3.5 Gingerbread firmware, you can find the same from the path Settings > About Phone > Firmware Version where you will find the version of Android OS where it will show XXJVT 2.3.5. If it doesn’t show this version then you will have to update the same from the below link,

Procedure to update Samsung Galaxy S with XXJVT 2.3.5 Gingerbread

  • Ensure that the phone is charged with the minimum of 60% so as to just ensure that the phone doesn’t get turned Off in the process of the Kernel installation.
  • Please note that in this process you need to disable any Voodoo lag fixes if applied from the recovery mode or else it will brick your phone. The recovery mode can be entered by pressing  Volume UP on Volume Down Key + OK button, and holding both simultaneously press the Power Button. You can refer the below mentioned video on how you can enter into the recovery mode. In the recovery mode, select Wipe data/factory reset and also you need to select Wipe Cache partition and then reboot your device by selecting reboot system now option.


  1. não quero spam

    are you an idiot? 300% more volume is useless if the sound quality isn’t there. only and idiot would care about loud music and not quality.
    also, color temperature is not a “sony bravia” thing. it’s a light thing. any light.

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    Greetings from Los angeles! I’m bored at work so I decided to browse your blog on my iphone during lunch break. I enjoy the info you provide here and can’t wait to take a look when I get home. I’m amazed at how fast your blog loaded on my cell phone .. I’m not even using WIFI, just 3G .. Anyways, awesome blog!

  3. Galaxy S I9000 – Overclock & Increase Volume by 300% with Semaphore Kernel on XXJVT 2.3.5 : Android Advices Very nice post. I just stumbled upon your blog and wanted to say that I’ve truly enjoyed surfing around your blog posts. After all I will be subscribing to your rss feed and I hope you write again very soon!

  4. I just replaced a older kernel for this one and wow! It’s so much faster. I just used SGS Kernel Flasher instead of Odin and it only took about 2mins to do. Thanks for the great work.

  5. hey to flash xxjvu i need to remove this right???so how do i do that???

  6. Hi Neal,

    Do you know what’s the safest overclock speed for I9000? and what tool to use for this?

    Thanks a lot!

  7. my phone gone blank once ODIN is at \ zImage\ stage
    …you said it takes about 5 mins…but mine gone blank for 10 mins…

  8. Hi Neal,
    I add this version of kernel to my xxjvt, can I now upgrade semaphore with higher version (1.9, 2.0, 2.1) with this procedure?


  9. Hello Neal.

    Can I update on 2.3.6 xwjvx. If yes than how it can update ?

  10. how to adjust the Semaphore room?

  11. An fascinating word is couturier annotate. I cerebrate that you should create more on this matter, it strength not be a prejudice soul but generally people are not enough to utter on specified topics. To the next. Cheers like your Galaxy S I9000 – Overclock & Increase Volume by 300% with Semaphore Kernel on XXJVT 2.3.5 | Android Advices.

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About Pradeep Neela

Friends call him Droid Geek because he tries out different ROM’s everyday and helps droid users experience better features on their devices. Add +Neal Pradeep on Google Plus for more Updates.
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