Android Firmware

How to Simply install the Voodoo Lag fix on your Galaxy S

voodoo logoIf you are bored with the slow response of your Samsung Galaxy S GT I 9000 device then let’s check out how you can install the latest Voodoo Lag fix after installing the latest firmware on your Samsung Galaxy S GT I 9000 device which promises to speed up your device without doing any harm to your device. Please don’t try installing this on any other device as it may brick your device. It is also highly recommended to try this only after reading whole procedure as if not followed this procedure which is mentioned below may even brick your device.  The main reason to install the Voodoo Lag Fix is to increase the speed of the Galaxy S as there is a huge increase in the Quadrant scores. Before installing the Voodoo Lag Fix, the Quadrant score was 1150 on just stock XXJPY 2.2.1  but after installing the Stock + Voodoo, the quadrant rank was recorded as high as 1450.

Before proceeding to install the Voodoo Lag fix, firstly you need to download the latest Voodoo lagfix and make sure that you are on the latest version of the firmware of 2.2.1 on your Samsung Galaxy S 2.2.1 XXJPY. Please note that for Voodoo Lag fix its not necessary to root your device.

Procedures to install Voodoo Lag fix on Samsung Galaxy S GT I9000:

  • First, you will have to switch off your device by taking necessary backups and then you need to enter into the Download Mode which can be activated by pressing the down volume button + Menu button, continue holding both and then press the power button holding the other two buttons (volume down + Menu button).
  • Now, you need to Open ODIN 1.3 version and need to select the downloaded tar file which is the Voodoo Lag Fix tar file in the PDA option.
  • Now, other options like Re-partition and keep the PIT should be unchecked and should be kept blank as it is.
  • Now, connect your device to the computer with the help of the USB cable and then after which you will be able to see the yellow bar on the screen and then click on the Start button and then your phone will restart in a few seconds of time. Don’t panic if screen blanks out for some time for say a minute or two as it makes file system changes in your device. Also, most importantly make sure that you don’t plug out the USB cable or tamper with the connection between your phone and the computer as this may interrupt the installation of the Voodoo Lag fix and may even brick the phone.
  • Now, your phone will restart, if it asks for any cache wipe then do the same and select the option to reboot the phone. Always read the instruction on your device before you proceed to select. Now, you have successfully installed Voodoo Lagfix on your Galaxy S.
  • Now, you can check the Quadrant scores, you can download the Quadrant.apk and can install the same in your device. You will find that the quadrant scores will be around 1450-1500 unlike before 1150 to 1200.

Do let us know if you encounter with any sort of problem and if the Password is asked after downloading any files which are downloaded like Voodoo Lag fix tar file and also the Quadrant apk file, then enter to unlock the file.



  1. El Nino

    July 1, 2012 at 9:20 pm

    2.3.6 xxjvu voodoo ? Please help me

  2. jacob

    May 19, 2012 at 5:35 pm

    isnt there any lagfix for i9003 jpkp5 ?pls reply

  3. google page

    April 24, 2012 at 12:24 pm

    I will right away grab your rss feed as I can’t find your e-mail subscription hyperlink or e-newsletter service. Do you’ve any? Please permit me understand in order that I may just subscribe. Thanks.

  4. doron

    October 2, 2011 at 9:22 pm

    helo 🙂
    my phon is galaxy s i9000
    firmware : 2.2
    baseband : i9000JHJP6
    build number : FROYO.JHJPC
    i dont need?
    because in the end i will want to have the lag fix in the .
    thanks alot, my Quadrant score is 950 . i will feel the changes ?

  5. Adrico

    September 11, 2011 at 1:36 pm

    Hi there,

    I have a really laggy Galaxy S;
    Model Number: GT-I9000
    Firmware version: 2.3.3
    Baseband version: I9000UGJL2
    Kernel version: 2.6.357-I9000XW JVH-CL 184813 ficeto@vpn #Dark_Core_2.3
    Build Number: Darky.Deodexed.XWJVH

    Will this software work for me?

    P.S. It might be because I am on my phone but where is the download link?

    Thanks, hope to hear from you soon. =)

    • NeaL Pradeep

      September 11, 2011 at 1:59 pm

      no, as this version as of now doesnt support the Voodoo!! You can install the base XXJVP / Q R firmware!

  6. Alex

    August 29, 2011 at 6:13 am

    Can I install voodoo lagfix on my samsing galaxy s scl? The model number is GT-I9003

  7. hammad

    August 27, 2011 at 7:35 am

    hi to all i canot open the downlad mode my fne firmware version is 2.1 help me to update my fone pllz s gt i9000


    August 27, 2011 at 12:07 am

    Will this work on Gingerbread as well? The Firmware version on my Galaxy S is 2.3.3 with baseband version I9000DDJV4 and the phone is really slow. Kindly email me if the same can work on 2.3.3 as well.

  9. Sameer Khojla

    August 1, 2011 at 7:34 am

    Hi Neal Pradeep i have successfully update Froyo XWJS7 in my SGS i9000 and its Excellent thx for your very easy guide but XWJS7 not supported Arabic Font/Text can u guide me how to install arabic text or support fixes. i am ok with English version but losts of people send me sms in arabic which i was reading in my privous version but now its not support plz help me

    • NeaL Pradeep

      August 1, 2011 at 10:11 am

      no sameer, as of now it doesn’t support arabic but you can search for arabic version on our site, its available!

      • Sameer Khojla

        August 6, 2011 at 7:48 am

        Ok Got it thxxx i updated with Gingerbread 2.3.3 JPJV6 and its English and Arabic both thanks you

  10. Sameer Khojla

    July 31, 2011 at 1:02 pm

    Hi please tell me can i install the Voodoo Lag fix on XWJS7 and XWJS8 and if yes than please give me the link page to guide how to Install


  11. Ardian

    July 12, 2011 at 5:57 pm

    after installing voodoo lag fix on galaxy s 2.2.1 froyo quadrant result is 1517

  12. vishal

    July 11, 2011 at 11:34 am


    • Neal Pradeep

      July 12, 2011 at 10:26 am

      lagfix basically improves the filesystema nd also speeds up the device!

  13. Galaxy S 2.3.4 XXJVQ

    July 3, 2011 at 9:40 pm

    does anyone knows where to download Voodoo lagfix for I9000XXJVQ?

    • Neal Pradeep

      July 4, 2011 at 4:53 pm

      there is no lagfix for jvq as of now!

      • Galaxy S 2.3.4 XXJVQ

        July 6, 2011 at 12:28 am

        Thank you very much Neal.

        By the way my Galaxy S GT-I9000 now goes to 1535 when I run the Quadrant Standard. Another question, do I still have to root my phone to gain more of its power or feature? Also, why I can’t move the apps to USB storage? it always prompt me “Failed to move application. Not enough memory”. But when I inserted a SD Card (external) the app can be moved to external card.

        • Neal Pradeep

          July 7, 2011 at 10:38 pm

          is your internal / external memory full?

        • Galaxy S 2.3.4 XXJVQ

          July 8, 2011 at 5:47 am

          Hi Neal,

          how can i used the USB (internal) 13GB storage for the apps? Shall I root the unit or the unit is really made that way? I mean, the internal storage is just meant for photos, videos and musics.

          sorry if I sound strange, i am new to android phones this is actually my first time to have one.


          • Neal Pradeep

            July 12, 2011 at 10:48 am

            which phone are you using and i hope you are on a froyo or gingerbread version wherein you can easily transfer all the apps by default to the sd card!

  14. supermaneer

    June 8, 2011 at 1:08 pm

    Hi dude, do let me know if there is any update of Lagfix for 2.3.3

    I am currently running DXJV9 international I9000, can’t wait for the lagfix to come, would you recommend me to root my device and flash CyanogenMod?

    Many thanks.

  15. ashuvin

    April 27, 2011 at 11:29 am

    how to uninstall this?

    • Neal Pradeep

      April 27, 2011 at 11:30 am

      Hey @ashuvin just folow the instructions mentioned above!

  16. Tim200906466

    April 23, 2011 at 8:22 pm

    I need the lag fix for 2.3.3. Please let me know when one is available…

  17. Javidan

    April 21, 2011 at 8:56 pm

    my FW is XWJS8 ,may i install lagfix for this ??

    • Sameer Khojla

      August 1, 2011 at 6:34 am

      my FW is XWJS8 ,may i install lagfix for this ??

      • NeaL Pradeep

        August 1, 2011 at 9:56 am

        no, as of now it doesn’t support the XWJS8 version of firmware!

  18. GOGA3

    April 15, 2011 at 12:06 pm

    I have only 1251

    Samsung galaxy s


  19. Mike

    April 12, 2011 at 9:48 pm

    Hey Neal,

    Is there any idea of a time scale for the voodoo that will be compatible with 3.2.2/3?

    need to get this quadrant up from 950.

    • Neal Pradeep

      April 13, 2011 at 6:29 am

      @mike as of now it hasn’t come, but rest assured once it arrives, will update you with the same!

  20. Charmander-X-

    April 10, 2011 at 8:02 pm

    To Mr Neal..can i install this Vodoo Lagfix to my android?my Galaxy S was updated to 2.3.3 Gingerbread..reply me ASAP..tq

    • Neal Pradeep

      April 10, 2011 at 8:15 pm

      @Charmander-X as of now no voodoo is bilt for 2.3.3 version, as soon as it comes out will let you know!

      • nurul

        May 21, 2011 at 7:16 pm

        what to do if I had already installed Voodoo with my Galaxy S updated to 2.3.3 Gingerbread? Can I undo/uninstall it? need help quickly.

        • Neal Pradeep

          May 22, 2011 at 7:58 am

          @nurul just disable and install the firmware!

        • nurul

          May 24, 2011 at 11:14 am

          how to do so? my phone wont turn on. according to your expertise, should i proceed with gingerbread 2.2.3 or install the froyo 2.2.1 instead? i need to wait 24 hour before enter the download mode.

  21. Gibran

    March 19, 2011 at 7:22 pm

    is there any otherway to make it more faster ??

  22. Gibran

    March 18, 2011 at 8:20 am

    my friend has a GALAXY SL was wondering if this would work in his phone ??

  23. Ben

    March 11, 2011 at 1:19 pm

    Thanks, I’ve just installed it, and my quadrant score has gone from a top of 1250 on the stock XWJS7 fm, to a best of 1649 with voodoo.

  24. Ben

    March 11, 2011 at 11:04 am

    Thanks Neal, just one other question, does voodoo have any effect on battery life and are there any other downsides to installing it? I’m not worried about warranty but just in terms of phone use and performance.

    • Neal Pradeep

      March 11, 2011 at 11:14 am

      @Ben there is no negative effect of battery life as such, since it speeds up the device the lag is overcomed and hence the battery is saved by doing faster processings.

  25. Gibran

    March 11, 2011 at 9:05 am

    can i use this on gingerbread 2.3.2

    • Neal Pradeep

      March 11, 2011 at 10:28 am

      @Gibran, sorry for the delay and sorry to say thats you will not be able to use Voodoo on 2.3.2 as of now 🙁

  26. Neal Pradeep

    March 11, 2011 at 6:13 am

    @Ben yes you can install Voodoo for XWJS7

  27. Ben

    March 11, 2011 at 6:11 am

    Hi, can you tell me if this method is still correct for the XWJS7 firmware? And is the Voodoo download link given in the article still the latest or the correct version of Voodoo for XWJS7?



  28. David

    March 5, 2011 at 8:23 pm

    I have 2.2.1 JPU firmware + voodoo lagfix and am wanting to flash the latest version of JS5. will i have to apply voodoo again or will it already be on there??

    thanks in advance

    • Neal Pradeep

      March 6, 2011 at 4:02 am

      hey david, sorry to say that you again need to load the voodoo lag fix separately and is also available for JS5 version like Voodoo is there for all the 2.2.1 version

  29. James G

    March 2, 2011 at 4:45 am

    Hey all,

    just after some clarication on this step:

    ■Now, other options like Re-partition and keep the PIT should be unchecked and should be kept blank as it is.

    does this mean untick all options ie re-partition/autoreboot/f.reset time or just leav re-partition unticked and the other 2 remain ticked.

    Also what is the “keep the pit” option?


    • Neal Pradeep

      March 2, 2011 at 6:59 am

      just leav re-partition unticked and the other 2 remain ticked.

  30. carlos

    March 1, 2011 at 1:51 pm

    @Adam how long did you wait for your phone to boot? Sometimes it can take up to 10 min

  31. Umer Chaudhry

    February 18, 2011 at 7:02 pm

    Hi there, I am really tempted to go for voodoo lagfix. have FROYO JPJPF.
    I just can not have the DOWNLOAD MODE. by pressing all the three keys the mobile just not give me the download mode. can anyone please let me know WHY I can not get the download mode and or is there any other way to get the download mode??

    thank u

    • Neal Pradeep

      February 20, 2011 at 1:27 pm

      this is the only way to get the download mode, do it correctly you will get into download mode

    • Sameer Khojla

      July 26, 2011 at 7:11 pm

      I have the same Version and my question is can i Go with XXJPY lagfix ??????? plzzzzzz

    • Sameer Khojla

      August 1, 2011 at 6:16 am

      i had same Version as yours but downlaod mod works maybe you are not proper >

  32. Neal Pradeep

    February 9, 2011 at 10:15 am

    @Firefly8 you need to upgrade the fw with xxjpy

  33. Neal Pradeep

    February 9, 2011 at 10:13 am

    @adam you can select the option by pressing the Power button

  34. adam garfitt

    February 8, 2011 at 7:51 pm

    Hi I have followed all these steps but my phone wouldn’t boot afterwards. I can get into the recovery menu but its all in red and wont let me select any options!! any ideas how to get the phone working again I have a few options I could try if it would let me select any!!



    • asd

      May 6, 2011 at 6:17 pm

      you bricked it..too bad

    • roshaan

      May 8, 2011 at 6:54 pm

      hey mate dont worry you can fix it….. i kind of know what im doing so when i bricked mine i fixed and in the process of fixing upgraded mine to android 2.3.3. what you have to do is go to here and follow the steps. if it sais failed retry it a few times but without the re-partioning selected. hope it fixes soon and good luck.

  35. rajesh

    February 4, 2011 at 12:42 pm

    quadrant 1930 by one click lag fix.
    gt i9000 ddjp2

  36. Firefly8

    February 2, 2011 at 2:53 pm

    Is possible to use “stock+Voodoo-5.0.3-Froyo-GT-I9000-XXJPY” if I have XXJPP? Or I must to format the phone with the XXJPY firmware?

  37. andyeden

    January 28, 2011 at 8:03 pm

    well people it’s works so good first time and i was crapping myself when i was doing this i done the rooting and lagfixing all from this site howq cool is that thanks alot again

  38. anthony

    January 16, 2011 at 11:33 pm

    it was an incompatable app running just got quadrant 1525

  39. anthony

    January 16, 2011 at 11:21 pm

    works fine, shit myself when fone started talking to me like a robot lol quadrant went from 750 – 1210 , how do i improve this? others are reporting 1500

  40. Glen

    January 15, 2011 at 6:24 pm

    Worked 1st time, a bit scary when it speaks to you to tell you what its doing.
    Before : 1020
    After : 1480

  41. John

    January 14, 2011 at 7:19 pm

    Please advise if I can do this upgrade for device bought in Dubai. My baseband version is I9000JXJPE. Thanx

  42. Martin

    January 12, 2011 at 3:02 pm

    Works fine!
    Before: stock 2.2.1 XXJPY – quadrant: 1050
    After: quadrant: 1560

  43. Alexv

    January 10, 2011 at 7:16 pm

    anyone wanna holler at me if it works then i might give it a try??

    • artur

      August 29, 2011 at 9:03 am

      look dude try it… even if you brick your phone you can get it back to work….. just re-install the firmware…
      you can re-install with odin 1.3 by finding the firmeware online…

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