Android Firmware

How to install Voodoo Lagfix on Samsung Galaxy S with XXJVP 2.3.4

Samsung Galaxy LogoFor all those who want to Speed up their Samsung Galaxy S devices, here’s a great news for all of them as recently Voodoo has come out with a Stock XXJVP 2.3.4 Gingerbread along with the EXT 4 Kernel which basically eats up the lag giving rise to the faster experience. With the arrival of Samsung Galaxy S2, you might feel that you are using an under powered device but it’s actually not the case how it’s differentiated as we will now check out on how you can fasten up your phone. Please note that you will have to carefully follow the below mentioned pre instructions followed by the instructions to apply Voodoo on your Samsung Galaxy S or else there is a high risk of even bricking up of your device.

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  1. Chris

    April 24, 2012 at 7:49 pm

    Hey, will you have a lagfix out for 2.3.5 soon?


    • Pradeep Neela

      May 2, 2012 at 12:29 pm

      yes it will be out soon

  2. roy

    April 14, 2012 at 5:10 pm

    Ive put a firmware of you on my phone how do i remove it to put a original firmware back on so i can connect to kies

  3. Niranjan

    October 18, 2011 at 2:28 pm

    When i give start it says FAIL!! what is wrong?
    message window says

    Odin v.3 engine (ID:5)..
    File analysis..
    Can’t open the serial(COM) port.
    All threads completed. (succeed 0 / failed 1)

    • Niranjan

      October 18, 2011 at 2:55 pm

      i tried again but the phone is stuck with the download mode and the odin window saying

      Odin v.3 engine (ID:5)..
      File analysis..
      Get PIT for mapping..
      Firmware update start..

      i waited 10 minutes!

  4. Xiang

    October 13, 2011 at 7:08 pm

    before lagfix : 1862 quadrant score.
    After lagfix : 1862 quadrant score. Help me ! what’s wrong ?

  5. Xiang

    October 13, 2011 at 6:17 pm

    can i choose not to restore factory settings after this lagfix ?

  6. Xiang

    October 13, 2011 at 5:50 pm

    Can i choose not to restore factory settings after this lagfix ? And also, after doing this lagfix , my phone does not seems to be rooted at all.

    • NeaL Pradeep

      October 13, 2011 at 5:57 pm

      applying this will certainly root the phone!

  7. Abe

    October 8, 2011 at 9:36 pm

    Would like to install the Voodoo lagfix, but i already have a speedmod install (which still uses the rfs), would i be able to install the voodoo lagfix over it?

    thank u

  8. aris

    September 9, 2011 at 12:09 am

    i want firmware for my galaxy s i9003. someone help me please!

  9. matt Cvag

    September 7, 2011 at 3:10 am

    Bartender…..get this man a drink…Hell….get him anything he wants. Neal…thank you so much for the step by step walk through. I no want to sing lullabies to my phone at night it runs soooo smooth and fast.

    One Question I have for you though……I didn’t do the clear cache step in the recovery mode. I didn’t want to do a factory reset which I seem to recall you mentioned to do. Is this bad? What benefits are there from doing it, and what will I be missing out on…..extra battery life? I did a quadrant test as scored a 2253!! for me…that was unheard of before!! I just was wondering if I could leave it the way it was.

    Cheers and thank you very much again. To anyone reading….don’t even think about doing it….just do it. Follow Neal’s explanation….and you will be a very happy androidaholic.

  10. Hassan Faizal Thariq

    August 25, 2011 at 1:31 am

    Heyyyyyy ur tutorial was worth it……..Thank a lot…….Keep posting up with new tricks……will be a frequent visitor to ur site…..

    • NeaL Pradeep

      August 25, 2011 at 10:05 am

      thanks a lot buddy for your comment!

  11. ajbless

    August 21, 2011 at 9:22 pm

    Hi neal,

    When will you release the voodoo lagfix for xxjvr??

    Please update us…

    Thanks for your hard work to speed up our phone.

    ur team was zo great!!

    • NeaL Pradeep

      August 21, 2011 at 10:17 pm

      there is no ETA as of now but you can root this and then you can convert the file system to the EXT 4!

      • ajbless

        August 22, 2011 at 10:58 pm

        how mr neal?

        • ajbless

          August 22, 2011 at 10:59 pm

          and mr neal, why a lot of HD games of mine force close… now that im in higher version XXJVR,,,i cannot play my HD games

          • NeaL Pradeep

            August 22, 2011 at 11:59 pm

            which game you are trying to play and what version you are ON?

  12. Tomasso

    August 15, 2011 at 9:18 am

    Thanks for the good work Neal,

    I’m a little confused. Initially you said “Only JVP”, a week later “JVQ”, and a couple more weeks “JVR”. I have JVQ. Is it the same Voodoo lag fix for P, Q and R?

    • NeaL Pradeep

      August 16, 2011 at 12:19 am

      no, its different for different firmwares!

  13. jaspreet

    August 12, 2011 at 12:31 am

    my phn switches off automatically and sme robotic female sound starts saying estimated time left 2min and phn restarts and nothing happens………….while on the odin screen comes reset and below in procedure comes removed ….. my phn restarts that time………please help

    • NeaL Pradeep

      August 13, 2011 at 4:51 pm

      have you tried updating with any other phone?

  14. chintan

    August 9, 2011 at 12:15 pm

    what is password ?
    for this itam

  15. stilecroatia

    August 5, 2011 at 5:33 pm

    Can i install this lagfix on 2.3.4 xxjvr?

  16. Luli

    August 5, 2011 at 12:53 pm

    Actually I dont have at all installed voodo lagfix, what is your suggestion..
    Do I need lagfix installation for fw XXJVR 2.3.4 (currently from quadrant, full benchmark 1450-1700)
    if yes then, should I wait for updated voodoo lagfix version/ or there is another alternative to enable lagfix.
    Thank you

    • NeaL Pradeep

      August 5, 2011 at 12:59 pm

      no, its not required but we will try our level best if we come out with the procedure to Voodoo XXJVR laden SGS!

      • Willing Tan

        August 5, 2011 at 11:44 pm

        Do keep us posted on XXJVR 2.3.4 when you release it. Thanks! 🙂

        • NeaL Pradeep

          August 6, 2011 at 5:36 pm

          XXJVR has now arrived!

        • Nitish Kumar

          August 12, 2011 at 2:09 pm

          Just used the same steps and file for rooting SGS I (i9000) with XXJVR. Working perfect.


          • NeaL Pradeep

            August 13, 2011 at 4:19 pm

            thanks for your feedback!

  17. Luli

    August 5, 2011 at 2:50 am

    hi Neal
    can I use this Voodoo Lagfix XXJVP 2.3.4 on Samsung Galaxy S with XXJVR 2.3.4 ?


  18. stibi

    August 3, 2011 at 3:59 pm

    didnt work for me with odin3 1.0. Had to use 1.83 and everything worked fine. Anyway, nice guide and especially download source 😉 cheers

  19. Salman

    July 28, 2011 at 4:05 pm

    after having voodoo lagfix can we connect to samsung KIES ?

  20. piyush shivnarayan

    July 26, 2011 at 9:46 am

    It show program wants to close.

    • darky's 10.2

      July 29, 2011 at 11:21 pm

      I don’t even have kies in my laptop. I don’t need that any way. I can backup my files, contact and apps elsewhere and don’t depend on kies for firmware upgrade.
      just flash manually, why you need kies for upgrading to xxjvq?

  21. piyush shivnarayan

    July 24, 2011 at 5:31 pm

    Hello i use galaxy s i9000. My problem is when i connect my ph to kies it detect but when i get upgrade the connection is lost to kies. Error shown that kies wants to close. And upgrade process continue. I reinstall kies many times but same rusults plz help me out. Plz

    • NeaL Pradeep

      July 24, 2011 at 7:20 pm

      INSTALL xxjvq 2.3.4 and your issues will be sorted out!

      • piyush shivnarayan

        July 24, 2011 at 11:29 pm

        Thank for reply;
        Hello experts,
        I use galaxy s i9000 in india. My problem is when i connect phone to kies it connect but when i got msg that upgrade found,and click the upgrade my phone lost the connection. Process of updation still running. (upgrading componants are downloading).after downloading 100%,( kies prepare upgrading componants for installing). Then kies crash(error shown kies wants to close). reinstall kies so many time but problem is still there. What can i do? I want upgrade my phone to jv9. Plz help me out? I cant upgrade my phone to jv9.

        • NeaL Pradeep

          July 25, 2011 at 3:57 pm

          may i know what’s the error it shows!?

  22. kuber chib

    July 23, 2011 at 1:09 pm

    I am trying this on my 2.3.4 xxjvq but its stuck on File analysis..any idea?

    • NeaL Pradeep

      July 26, 2011 at 10:58 am

      just restart the pc and phone to retry the updation process!

  23. shabith

    July 21, 2011 at 8:34 am

    Hi Neal,

    Will I be able to install voodoo lagfix with XXJVP 2.3.4?
    My Phone is:
    I9000DDJV4 root@SE-S605 #2

    Thanks in advance 🙂

  24. PVB

    July 15, 2011 at 2:00 pm

    I couldn’t access recovery mode….

    Here’s what i did to my Galaxy S (Eclair):
    Flashed to Gingerbread XXJVP 2.3.4 Firmware, wiped cache partition & factory reset.
    It worked awesome.
    Wanted to make it faster hence Flashed with Voodoo lagfix as said on this page… but i forgot to kill the Kies processes. The process occured but my phone couldn’t start…. and the robotic voice kept saying wipe cache partition or something…
    So, i switched off by removing the battery and switched on the red recovery mode and managed to Wipe cache and factory reset, but the robotic voice came back to haunt me with the same message.
    I freaked out and entered download mode again and again flashed to XXJVP 2.3.4 Gingerbread…
    Phone switched on fine… but now i couldn’t enter recovery mode…
    I thought reflashing the Voodoo lag fix might fix it… but still can’t enter Recovery mode(download mode works fine)
    Overall phone is way better than before but just for the sake of procedure, i wish to access recovery mode and wipe cache partition and factory reset.

    • PVB

      July 15, 2011 at 2:07 pm

      Leave it.
      I added my Sim and could enter the recovery mode…..

    • NeaL Pradeep

      August 2, 2011 at 4:35 pm

      have you tried installing the CWM?

  25. George Z

    July 13, 2011 at 4:54 am

    hi Neal, thanks for the comprehensive overview of speeding up the phone. I havent done it yet as I need a few questions answered as there seems to be a number of “upgrades” and Im unsure which one I should do.
    My phone : GT-I9000, FrmWr 2.2, Baseband I9000HVJP3 , Kernel root@SE-S604 #6 , Build nmbr FROYO.HVJP4
    So ALL applications get removed ? And Im with Vodafone. Does the startup screen with the VF logo disappear ?
    Look forward to your response and ALl help here appreciated.

    • Neal Pradeep

      July 13, 2011 at 9:32 am

      update with the latest 2.3.4 XXJVQ for better performance!

    • Neal Pradeep

      July 13, 2011 at 9:33 am

      if you are with vodafone then we have also covered the latest rom for Vodafone too, kindly check at for the same!

  26. JR

    July 12, 2011 at 2:35 pm


    ive already rooted my phone with the latest gingerbread 2.3.4 XXJVQ Firmware.

    is it safe for me to install voodoo lagfix, or do i have to re-flash my phone??

    • Neal Pradeep

      July 13, 2011 at 9:42 am

      if you follow the procedure then it will be safe, but if you skip any instruction then you will brick the device!

      • JR

        July 13, 2011 at 11:18 am

        worked perfectly!

        thank you again

  27. feyungco

    July 11, 2011 at 2:23 pm

    I installed the lag fix, ODIN says GREEN (PASSED), phone rebooted, did the data wipe, cache, but quadrant did not improve at all. Is my kernel supposed to have a different name than the one on 2.3.4 gingerbread? After I installed the lag fix, kernel did not get changed.

    • Neal Pradeep

      July 12, 2011 at 11:03 am

      u r facing this issue after updating the fw or after rooting the firmware.

  28. vicious

    July 11, 2011 at 12:27 pm

    Where are the installation steps, I don’t see it, on all HOW TO links. Please help

    • Neal Pradeep

      July 12, 2011 at 10:43 am

      all links are mentioned in this article!

  29. supermaneer

    July 10, 2011 at 10:29 pm

    hi Neal,

    I am running I9000DXJV9. According to the old post, this lagfix will only works on XXJVP version. Do you have any suggestion what should I do to install lagfix on it? To change my Kernel to XXJVP?

    If so, how could I do that? Or do you know any other sources for me to get lagfix for JV9?

    Sorry I am a noob with my SGS and it’s performance has just disappointed so much.

    • Neal Pradeep

      July 10, 2011 at 11:47 pm

      try using the XXJVQ fw as it doesn’t require lagfix!

  30. Jake

    July 9, 2011 at 8:34 am

    Hey Neal, What should my benchmark score be at now? thanks

    • Neal Pradeep

      July 10, 2011 at 1:15 pm

      benchmark may differ from handset to handset!

  31. Estee

    July 8, 2011 at 12:29 pm

    hi there,

    just a few questions.
    after i did all according to the instructions, i come to the recovery mode
    when i tried to wipe data/factory reset i waited for quite some time but nothing happens after that.
    in the end i just took out the battery n on the phone back
    i can still manage to on my phone without fail but is the lag fix done?
    fyi, when i open the recovery mode it is actually different from your screen shot above. mine is in red fonts n vodoo lag fix word is in place? any help?

    • Imran Ithisham

      July 10, 2011 at 1:19 pm

      Voodoo lagfix changes the recovery mode screen, the selection key is the “power key” unlike the default “middle button” The middle button turns the screen off and on upon press… Clear the cache partition and reboot your phone…

      FYI – the lagfix should be installed successfully if you can see the red recovery screen…

      Sri Lanka

      • Neal Pradeep

        July 11, 2011 at 10:21 am

        voodoo doesn’t change the rebooting screen and there is nothing like that the lagfix should be installed successfully if you can see the red recovery screen…

  32. kristian mendoza

    July 8, 2011 at 2:28 am

    Hi Neal,

    I would like to ask if this lagfix can be used for 2.3.3 with kernel ver. JV6 (this is the arabic version)?

    Hope this will be OK.

    • Neal Pradeep

      July 8, 2011 at 3:23 pm

      no, the lagfix mentioned here only applies to the XXJVP version!

  33. Sambamurthy

    July 7, 2011 at 3:52 pm

    Thank you so much, I did lag fixing.But how come still I have my 2GB ( system storage) left out without using for lagfix file extension ???

  34. Amin Hussain

    July 5, 2011 at 9:31 pm

    can i just ask though, is it necessary to run the lag fix many times in the future. I have noticed that after a while , my quadrant score jumps back down to 900 from the 1900s. Can you explain why this happens?

    • Neal Pradeep

      July 7, 2011 at 10:35 pm

      no amin, lagfix just optimizes the file syste and makes it faster. its not a compulsion though!

  35. Amin Hussain

    July 5, 2011 at 9:29 pm

    Thank you Neil, the simple instructions were a breeze to follow and I look forward to receiving more tips/updates from you

  36. Jolo Pastrana

    July 5, 2011 at 3:23 pm

    Hey guys,

    Will this also work on Samsung Galaxy SL I9003 with android version 2.2.1?

  37. Xplice

    July 4, 2011 at 5:03 pm

    Thanks for this!

    It seems that is not being updated anymore.. Where did you get the lagfix from??

    I’m running JVQ – will the JVP lagfix work or will it brick my device??


    – Please only comments from ppl who know what they are talking about

    • Neal Pradeep

      July 5, 2011 at 4:27 am

      no it will not work for any other fw apart from the mentioned version!

      • Sambamurthy

        July 7, 2011 at 3:54 pm

        I tried it for JVQ but it just messed up.. so I intalled XXJVP and then lagfix.

  38. Martin Edlman

    July 3, 2011 at 12:08 pm

    Hi Neal,
    great tutorial, great lag fix, great job.
    My benchmark (Quadrant) on 2.3.4 Gingerbread was 1303, after applying your lag fix it jumped up to 2031. Thank you.

  39. Jafer

    July 2, 2011 at 11:36 am


    M8, I have a SGS- I9000 with gingerread 2.3.3 with kernal version XXJVK..Is it possible for me to implement whatever you’ve said in the above post? Coz I really need to see some performace..

  40. Prateek joshi

    July 2, 2011 at 3:48 am

    Yup , did exactly what was being told to, but battery drain just takes away all the joy ! any other method ? i had to download and install all the apps again

  41. Prateek joshi

    July 2, 2011 at 3:32 am

    Hi Neal,

    i followed the instructions and now my device is running very fast and smooth , but the problem of battery drain has come up , cant keep gprs on , as it just eats away my battery and i have to charge my cell twice in a day !! Any solutions ? any other software to try ? BTW i also have tried using task killers but no use. Please help

    • Neal Pradeep

      July 2, 2011 at 3:40 am

      have you cleared the cache and deleted all the apps?

  42. mukib

    July 1, 2011 at 2:08 am

    I have installed the lagfix according to your instructions but the benchmark hasn’t improved after the installation(still shows 1375). Should I install the lagfix again?

    • Neal Pradeep

      July 1, 2011 at 2:24 am

      just clear the cache!

      • mukib

        July 1, 2011 at 6:55 pm

        have cleared cache and also wiped data after installation. What should I do now? Thanks in advance. 🙂

  43. Regmi

    June 30, 2011 at 11:02 pm

    Hi Neal. Thanks a lot for your tutorial. I have flashed voodoo few days ago, everything is fine, my galaxy s is working like a charm. But I have a question, it may could be little bit irrelevant here but its the problem in samsung galaxy s with every firmware till date (or I don’t have any clue?), problem is that while making video call using yahoo messenger its rear camera turns on, front camera doesn’t. I haven’t tried video call using 3g yet. Is the application faulty or something wrong with galaxy s?? I hope you reply
    thank you..

  44. Abhijeet

    June 30, 2011 at 12:11 am

    Hi Neal,

    Its about 10 mins since i started the firmware update…it is still not completed. Is that normal??

    • Neal Pradeep

      June 30, 2011 at 12:28 am

      its abnormal, can you tell me wats happening on the screen!?

  45. tsolag

    June 29, 2011 at 5:10 pm

    hi Neal
    i am using a galaxy s I have gingerbread 2.3.4 installed and lagfix and rooted.
    the problem is that every time i call any number and they don’t answer the message “com has stopped unexpectedly” appears..
    is there a solution to that?


    • sam

      July 6, 2011 at 9:00 am

      Hi neal,

      I have the same problem 🙁
      but it happens once in 2/3 days after drop the call … com has stopped unexpectedly” appears.. network signal crossed and after few sec it works again ….

      help !!!

  46. Pradeep

    June 25, 2011 at 6:50 am

    I have gingerbread 2.3.4 installed. After doing that upgrade, I had to restore all my installed appllications and the even the phone book. Will this be the case here as well. Do I need to re-install all my application after installing Voodoo lagfix.


    • Neal Pradeep

      June 25, 2011 at 6:59 am

      yes its preferably advised to re install the apps!

      • Pradeep

        June 25, 2011 at 7:13 am

        Thats’ bad news again for people who have installed angry bird and completed some levels in it. 🙁


  47. Sharanam Shah

    June 23, 2011 at 5:59 am

    I have already rooted gingerbread 2.3.4 on my Samsung Galaxy S .

    Can i proceed with the installation of Vodoo lag fix directly or do i need to reflash unrooted version of 2.3.4 gingerbread again.

  48. Mike

    June 23, 2011 at 5:46 am

    Hi everyone.

    I strongly recommend this upgrade and voodoo lagfix.

    Not only it makes your phone work faster but also BATTERY LIFE has increased significantly.

    I have been using this for last two days. Before my battery would not last more then 10 hour with noraml phone use + bit of gaming + wifi on.

    Now it last for 10 hours with 50% battery. No I can play games and browse web and keep animated wall paper on without having to worry about battery.

    Thanks Neal. You guys are too good. Thanks heaps for this update and easy to install procedure. 😀

  49. Yunksi

    June 22, 2011 at 4:43 pm

    Nice stuff, Neal!

    Everything works perfectly!

  50. mr_gibran

    June 22, 2011 at 5:18 am

    @neal how can one uninstall the lagfix ???

  51. Ovidiu

    June 21, 2011 at 6:40 pm

    Hi…please help.
    I installed voodoo lagfix on my 2.3.4 Android. Everithing went fine until the wipe data/factory reset.
    In recovery mode the options are in red, not blue like it was before installing the lagfix. More than that i cant select any option. I can navigte up and dawn with volume +/- keys but when i press home button to select the option the screen turns off. It’s like i would press the power button. Press home button again and screen come sback. But the option is still not selected.
    Pls pls help.
    PS: Do i need to wipe data and clear cache for lagfix to work?…or after instalation it’s already running and wipe data / clear cahce it’s an optinal step?
    Please reply!

    • donskie

      June 21, 2011 at 7:35 pm

      use the power button to select and not the home key

  52. adrian

    June 21, 2011 at 3:48 pm

    quadrant score is 2298.. my previous was 1700 something on 2.3.4 version without lagfix..

  53. Ovidiu

    June 21, 2011 at 12:04 pm

    Hi Neal,
    after applying Voodoo LagFix (all ok) when i restart in recovery mode first of all the options there are in red, not in blue like in your screenshot.
    I gues the lagfix is installed now because i have an option there “voodoo lag fix” or somthing like that.
    The problem is that when i press on whipe data/factory reset the screen go blank and nothing is happening. I need to restart the phone after that.
    Am I missing something?

    • Ovidiu

      June 21, 2011 at 1:05 pm

      Actualy…any of the options there is not working. It’s like the home button instead of selecting an item si turning the screen off. If i press home button again the screen comes back…but i cand select the desired item. Not even reboot now. Any sugestion please.

      • Neal Pradeep

        June 21, 2011 at 4:41 pm

        just follow the instructions again to update the same again!

    • Neal Pradeep

      June 21, 2011 at 4:47 pm

      if your phone is working perfectly fine then dont do any modifications, while if your phone is not getting switched ON then just reflash the XXJVP 2.3.4 firmware to solve the problems!

      • pyrophreak

        June 22, 2011 at 11:17 am

        Actually the same thing happened to me… but I figured out that the button to select an option isn’t the ‘Home Button’ anymore, its the ‘Power Button’!

        Worked for me.

  54. Hamsheed

    June 21, 2011 at 6:00 am

    Hey Neal….

    I would like to call you the android GOD!!!!!!!!!!!!

    2 updates and Voodoo Lag fix done ….every thing i do from your post just makes my phone better…

    thanks a ton!!!!

    • Neal Pradeep

      June 21, 2011 at 5:00 pm

      1. We are no God!
      2. Really thanks buddy for the appreciation!

  55. Sharanam Shah

    June 21, 2011 at 4:43 am

    Can this be installed on 2.3.4 XXJVP which is already rooted with ClockWorkMod

  56. Mike

    June 21, 2011 at 1:13 am

    Got it sorted. You guys are just awesome…!!!
    On stock 2.3.3 Quadrant reading was 977.
    After upgrading to 2.3.4 + voodoo lagfix, reading is 1735.

    Thanks Guys. You guys are too good. You make it much more fun to play around with Galaxy S.

  57. Mike

    June 20, 2011 at 11:49 pm

    Hi there. I have upgraded to 2.3.4 JVP.
    Now when I download voodoo hacks, it gives me two files. One is that odl thing and another one is a zImage. I can’t use zImage right? What should I do?

  58. Nunes

    June 20, 2011 at 2:35 pm

    Hi Neal

    My Galaxy S is with the 2.3.3 and it still seems to have a lag, can I install this lagfix on it?

    • Neal Pradeep

      June 20, 2011 at 6:35 pm

      NO Nunes, you will have to first install XXJVP fw!

  59. viking

    June 20, 2011 at 2:33 pm

    Thanks Neal, it was a great experience, my SGS is now very fast, more than twice the standard quadrant rate for Galaxy S.

    Buenos Aires

  60. Mike

    June 20, 2011 at 1:49 pm

    Hi there I have Samsung Galaxy S i9000

    Firmware 2.3.3

    baseband i9000SRJV1


    Would this lagfix work on my phone? Thanks

  61. sam

    June 20, 2011 at 10:52 am

    Hey neal, may be i broke my phone, while updating for voodoo lagfix i disconnect the usb cable because it took too much time to update. Now it is not booting and when i try through Odin in downloading mode, it show in ID:COM but after selecting the file then START it says ; “Enter CS for MDS” “Leave CS”.

    Please HELP 🙁

    shrestha sam

    • Neal Pradeep

      June 21, 2011 at 5:12 pm

      restart computer and phone to refollow the instructions!

      • sam

        June 23, 2011 at 5:44 am

        It worked !!! now again im with 2.3.4. Thanks 🙂

        u r great n i luv ur posts n trust on that ….

        But now im afraid to try again for Voodoo Lagfix ………. Is there only single file “Gingerbread-GT-I9000-XXJVP-stock-kernel+hacks.tar” and for PDA only ???? (im zero in this topic so asking :))

        2.3.4 Problem;
        “The process phone has stopped Force close”
        and suddenly my signal meter is disappears but after few second its fine….. Whats the matter ????

        Thanks Neal …….

      • sam

        June 23, 2011 at 8:22 am

        Hey Neal,

        Thanks man it worked and again im with 2.3.4 🙂

        U r really doing great and helping those who have no idea for firmware like me ….. 🙂

        But now im little afraid to try agin for Voodoo Lagfix 🙁 is there only one single file “Gingerbread-GT-I9000-XXJVP-stock-kernel+hacks.tar” and only for PDA ????? i really trust u shall i try again ???

        I found one problem in 2.3.4; “The process closed often ….. and my network signal meter change as no signal , but after few second it works again. Whats the problem !!!

        Thanks Neal

  62. nkfc1003

    June 20, 2011 at 7:09 am

    I haven’t got a 2.3.4 for my device yet. Can I install this lagfix in 2.3.3?

    • Neal Pradeep

      June 21, 2011 at 5:25 pm

      yes you can install the lag fix in your phone!

  63. Joyce

    June 20, 2011 at 5:58 am

    Thanks Neal. Best update! Voodoo rocks

  64. Imran Ithisham

    June 20, 2011 at 5:46 am

    a must need installation for the phone because I lost the lag which I experienced after upgrading from 2.3.3 XXJVO to 2.3.4 XXJVP… you can feel the difference in performance when you open the gallery and scroll down through heavy web sites… the lag when scrolling down the contacts is gone for good and it is as smooth as silk… the quadrant score goes easily beyond the 2000 mark to prove the performance and I would highly recommend this installation to all users who are not worried about warranty… the phone gets rooted automatically and installs the super user app which works only on rooted phones… if you know how to get back to your previous firmware then this wouldn’t be a problem to try… the Galaxy S II will have to wait for sometime before she meets me because my Galaxy S is being so good to me lol!!!

    Sri Lanka

    • adrian

      June 20, 2011 at 12:23 pm

      Imran, is everything ok with this voodoo fix, is there anyproblem u encounter after the installation, how about the camera and android market?

      pls reply. coz i am going to try it also.

  65. Hamsheed

    June 20, 2011 at 5:31 am

    Hey Neal,

    First of all thanks for the last update 2.3.3 XXJVK . I was planning to upgrade it to 2.3.4 and the use the Voodoo lag fix for the same released . I want to know if there are any risks involved and what are the differences from the 2.3.3

  66. Imran Ithisham

    June 20, 2011 at 5:18 am

    The device seems to be super-fast and when I scroll down my contacts it is as smooth as silk… I felt there was more lag in my 2.3.4 XXJVP version when compared to 2.3.3 XXJVO but now it is gone for good… I would advice people to install the voodoo lag fix because after my installation the quadrant scores goes pass the 2000 mark easily and you can feel the difference when you open your gallery or scroll down heavy websites… The phone is automatically rooted and installs the super user app and this process will void your warranty, that is if you don’t know how to roll back to your previous version… Check this site about going back to your previous version, Neal has posted it already… Galaxy S II will have to wait before she meets me because my Galaxy S is being so good to me 😉

    *2767*3855# — do not try this code on your phone, it does a factory reset and wipe without prompting the user… I just did and I am bloody pissed @ the moment…

    Sri Lanka

  67. Imran Ithisham

    June 20, 2011 at 4:52 am

    The phone seems to be dual core or should I say quad core after the installation lol… the quadrant scores have increased passed the 2000 mark easily and scrolling down my contacts is as smooth as silk… The phone is automatically rooted and comes with the super user app installed… Those people who are worried about warranty, please don’t proceed if you do not know how to roll back to your previous version because you would void it… In recovery mode, the power key becomes your selection key and not the home key, the home key would only switch your screen off… Thanks Neal, great job…

  68. raju

    June 20, 2011 at 4:27 am

    Hi neal
    i have already rooted my latest gingerbread 2.3.4 on samsung galaxy gt i 9000 . now can i proceed for installation of vodoo lag fix directly or do i need to reflash unrooted version of 2.3.4 gingerbread again

  69. manix

    June 20, 2011 at 3:38 am

    is this normal? my galaxy s is talking on recovery mode. 😀 LOL. XD

  70. Paddy Padmanabhan

    June 20, 2011 at 2:19 am

    HI i Completed the procedure as described above. But I am not able to get into recovery mode. Please advise how to get in there and wipe cache data etc.,


    paddy Padmanabhan

  71. Explorer

    June 20, 2011 at 12:15 am

    OMG, that’s a BIG difference:
    – On stock Froyo 2.2.1 my quadrant score was around 1100
    – The upgraded to Gingerbread 2.3.4 – score was 1175
    – Now with Voodoo Lag Fix my score is 2003 !!!

  72. ABBAS

    June 20, 2011 at 12:04 am

    hi neal ,
    works just awsome.thnx 😀

  73. Roderick Viado

    June 19, 2011 at 11:55 pm

    After installing the voodoo lagfix on my galaxy s, my phone doesn’t work, i followed all the instruction. Why? Can someone please help me

    • donskie

      June 20, 2011 at 5:53 pm

      what do you mean by not working??? Did you have 2.3.4 version when you installed vodoo?

      • Roderick Viado

        June 20, 2011 at 11:46 pm

        Yes, its currently on version 2.3.4 baseband version I9000XXJVP, i followed all the instructions carefully and until now its not working, it only shows the samsung logo after opening and nothing is happening after that, total darkness on the screen. This is the first time i failed to update my galaxy s

        • donskie

          June 21, 2011 at 10:12 am

          can you get into download mode??? i think you need to re install the 2.3.4 and install the lag fix again. Please try to check carefully if you have kies running it should closed/ or the process should be stopped before doing anything.. hope this help. just let me know if you have still problem with your phone.

          • Neal Pradeep

            June 21, 2011 at 4:51 pm

            download mode is perfectly alright!

        • Roderick Viado

          June 21, 2011 at 3:36 pm

          I kept on repeating the procedure but there is this robotic lady voice message that kept on repeating this phrases, “convert data partition, not enough space on partition, estimated time 2 minutes”. And still nothing happened

        • donskie

          June 21, 2011 at 7:06 pm

          just wait for a few minutes then the phone will restart.. it would take around3 to 5 minutes

        • Roderick Viado

          June 22, 2011 at 9:09 pm

          I just repeated the upgrading and this time i have waited about 3 minutes to reboot, my galaxy s is now working perfectly. Thanks donskie for the big help. i really appreciated it a lot.

        • donskie

          June 23, 2011 at 9:29 am

          no problem buddy.. enjoy your phone…

  74. hiyu

    June 19, 2011 at 9:16 pm


    i installed this but now my android market and samsung apps are just erased(it says: this app is not installed..)

    anyone who can help me with that??

    i would really apreaciate it!!

  75. hiyu

    June 19, 2011 at 9:13 pm


    i did what it says above, but now my android market and samsung apps is just removed/erased?!?

    anyone who can help me with that??

    i would apreciate it a lot!!

  76. Aaron

    June 19, 2011 at 6:03 pm

    Hey Neal,

    What do I say, you just keep getting better by the day, I’m always looking forward to that update from ‘androidadvices’ in my mail. Neal i have a question, after lag fixing, i have the superuser app installed by its own. Is this of any use bcuz i’ve not rooted the phone…


    • adrian

      June 20, 2011 at 12:33 pm

      your phone is already rooted after you installed voodoo lagfix.

  77. Alin

    June 19, 2011 at 5:00 pm

    Neal…after installing the voodoo lag fix, is it possible to flash my device again with another firmware? or when I don’t need voodoo can I uninstall easily? thanks

    • Manoj

      June 20, 2011 at 6:30 am

      @Anil he doesn’t reply this question, look above I asked already the same question and waiting for a reply.

      • donskie

        June 21, 2011 at 10:12 am

        i thnk you better read the blog again.. your questions have already been answered…. thanks

  78. sanjeev raj

    June 19, 2011 at 4:57 pm

    Hi neal.
    I want to know that i have updated my galaxy fit 2.2 with ur 2.3.4
    can i use this option on my phone

    • Venkat Ramana Dodda

      June 19, 2011 at 5:01 pm

      This is only suitable for GT-I9000 version.

      • Rappa

        June 20, 2011 at 6:52 pm

        omg…. dude help me, i accidentally flashed this on my galAXY S 4G AND NOW my phone wont start up and i guess i brick the phone already.. T_T pls help me guys.. my phone keep showing a different samsung model in start up and it keeps showing the boot logo…

  79. Venkat Ramana Dodda

    June 19, 2011 at 4:44 pm

    Thanks Neal, Great work!!!

  80. wasim

    June 19, 2011 at 8:43 am

    hi neal… how to check quadrant score????

    • Neal Pradeep

      June 19, 2011 at 12:39 pm

      Download the Quadrant app from Android Market Place

      • stile

        August 5, 2011 at 1:23 pm

        can i install lagfix on 2.3.4 xxjvr samsung galaxys?thanks

        • NeaL Pradeep

          August 18, 2011 at 5:56 pm

          no, not as of now! but as soon as it arrives, we will come out with the procedure!

  81. Manoj

    June 19, 2011 at 5:04 am

    Hi Neal, after installing the voodoo lag fix, is it possible to flash my device again with another firmware? or when I don’t need voodoo can I uninstall easily? thanks

  82. mr_gibran

    June 19, 2011 at 4:41 am

    @neal what are the quadrant scores after applying this ?

    • mr_gibran

      June 19, 2011 at 5:51 am

      could not wait so did it, found quadrant scores to be between 2320 – 2400

      + the best thing is it does not require backups or anything whatsoever

      • Rappa

        June 19, 2011 at 7:30 pm

        Ei i got a question before doing this to my galaxy s 4g, when i extract the zip file it has a zImage file on it… am i doing it right? pls check the voodoo lagfix link in this page.. Tnx Bro!!

  83. Francis Lim Panaguiton

    June 18, 2011 at 8:08 pm

    thanks neal… u are great!!!! just done mine and the phone seems to run even faster…cheers

  84. Jigar

    June 18, 2011 at 12:04 pm

    Voodoo Lag fix done !! thanks neal

    • Andrew

      September 27, 2011 at 6:25 pm

      hi i followed all the steps and everything was going to plan. i followed all the steps. but it seems like there is no difference. im still getting scores of just 1300, i know this is ok but it seems most ppl get over 2000.

      when i try to run the odin thing again and follow all the steps again it just says removed after it reaches the “zImage” part and my phone reboots.

      what should i do ? can anyone help?

      • NeaL Pradeep

        September 27, 2011 at 7:03 pm

        unzip the files for just once and not twice!

        • Andrew

          September 29, 2011 at 5:36 am

          and i only unzipped the files once not twice.
          are you referring to the file u use for the PDA section?
          when i add the PDA file it is still a zip
          i’ve followed every step correctly
          and the same thing keeps happening
          any ideas?

          • NeaL Pradeep

            September 29, 2011 at 9:24 am

            It will be the tar file!

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