Simple Xbox 360 rapid fire mod

Back in May we mentioned AcidMods’ spitfire mod that enabled rapid fire (amongst other things) and was undetectable by Xbox Live. The parts list was quite low, needing just a PIC16F84A and a few other components, which led to third parties selling controller mod kits on eBay. The AcidMods team has figured out a new way to enable rapid fire using just a momentary switch and the necessary wire to hook it up. All you need to do is wire in the switch between the ground on the controller LED and the middle pin on the trigger. The only caveat is that because it’s hardwired to the LED, you can only use the mod on the particular port you’re using the controller on.

The reason it’s so simple is because the Xbox 360 controller uses pulse width modulation to “dim” the LED on the controller, creating a rapid high/low signal. When the momentary button is depressed, it routes this rapid high/low signal to the trigger input on the controller, which is then input to the Xbox 360. Hit the read link for a couple more videos explaining this hack.

While this modification is undetectable by Xbox Live, it does create an unfair advantage in multiplayer gaming and could result in your account being banned.

[via Xbox-Scene]

Related: Xbox 360 Hacks, Xbox Hacks


  1. davis says:

    Nice hack made simpler! I wonder why he puts so much emphasis on this not being fake though..

  2. Gh0sTly says:

    because its a youtube video, and 99% of the youtube commenters will likely call fake on him.

  3. sam says:

    will this work with a wired controller?

  4. recombinator says:

    It’s legit but it only works for the old style (matrix) wireless controllers using a powersupply/batteries with less than 3.0 volts in them and is really only effective for Call of Duty (I know.)

    Or you can get the much more reliable/universal pic’s from his store for $8.
    This is still “only” useful for COD. Might improve your aim in Halo a bit…whatever

  5. Sooperman23 says:

    Wow, i found this information really old. ive already made close to 20 controler mods using this tech. but i did attach the second wire in a better spot.

  6. sunjester says:

    lol this guy is a douche, make sure you turn your sound off.

  7. Orac says:

    So this wont work on wired controllers then?

  8. dk says:

    does this method damage your controller in any way or shorten its life span? and what is the name of the wire and switch? lol sorry its a bit of a newbie question.

  9. Bob Ciesla says:

    I understand everything except the ground. What did he hook the ground up to? Can anyone provide a jpg.

  10. Kevin S says:

    I feel that there should be a more clearly, detailed illustration on exactly where to solder this.

  11. Eric says:

    I made my controller rapid fire but it fires on its own and when i predd the momentary button it stops firing the gun. Does anyone know why this happens?

    • JoeCooler says:

      You have most likely installed a “Closed” push button instead of an “Open” button. Closed switches will disconnect when pressed. Open switches will connect when pressed.

  12. digitalsamurai says:

    I’d guess (eric) that your switch is normally closed instead of normally open…

  13. Marcus says:

    Sooperman23 how did you wire your controler i need help this guys instruction suck ass..message me at

  14. Jon says:

    this only works on the old style controllers!

  15. dylan says:

    umm i got a question i have had my 360 for about a year now is my controller old enough to do this with

  16. Brandon says:

    got one for ya… I did the mod and it works wonderfull. That is when the controller stays synced. Any ideas why after 1 to 3 min the controller looses sync with the xbox. resyncs, works, looses sync… it just keeps repeating that pattern.

  17. mike says:

    hi how dow you tell if this will work with my controler plz

    • Dopey8446 says:

      To make sure this works open your controller and see if there is a resistor(looks like a oval shaped crystal thingy) right in the middle on the front of your controller if it does not it will only shoot one shot instead of rapid fire.

  18. kinskins18 says:

    If you don’t want to make one you can buy them at for $83. It’s a little steep but they sell around the same on eBay and these are crafted a little better than most of the ones out there. I bought one, just because I don’t trust myself to open up one of my controllers, because i’m pretty sure i’d destroy it haha =P


  19. Justin says:

    I dont know were to ground the wire at the top at the led. do you connect it to the side or do you put it in the hole below the led? please help

  20. Crash says:

    You solder the wire on the left side of the led. Dont apply too much heat as you can burn up the LED

  21. jason says:

    this is a good mod ive tryed it but he complicates it a little

  22. George says:

    dude why do you put so much emphasis on it not being fake its obviously not

  23. John says:

    can I do this on a wired controller?

  24. kinskins18 says:
  25. xXRPGXx says:

    i just modded my 360 controller today. and i put the wire in a better spot. i really like rapidd fire w/ the g3

  26. Rob says:

    I tried this worked fine, then updated xbox 360 to new firmware from xbox live, now it doesnt work at all, looked inside controller all is ok, and shorting out doesnt work, do we think micro have put a patch in to stop this?

  27. wheels says:

    I just modded mine with a 555 timer chip. After the xbox update, it still worked like a charm!

  28. farley says:

    so if micro put a patch on this do tha controllers u buy online still work and if not id like 2 see the instructions on a 555 timer chip

  29. Nick says:

    can u do it for the “b” button. i want to make sure i never lose a chainsaw battle on gears 2 again

  30. Trailrunner1966 says:

    Will this work on the Battlefield Bad Company Game?

  31. Tom Hanks says:

    does this mod work after the last live update?

  32. Eric says:

    can you mod a controller for me i’ll pay you

  33. Tucker says:

    So you can only do this mod with the old version that says…TB-1 by where the battery pack is of the new ones with the resistor or whatever it is on the front of the motherboard??

  34. codester says:

    I need a better picture of where to exactly solder the wires. is there any other ways to mod it using nly a few parts?

  35. nick says:

    Use this link to see a better picture of where exactly to solder.

    But my question is how do I know if I have a matrix control or one of the newer CG board controls?

  36. Morise says:

    hey i got a sleeper mod for crismas and i played with it for about 30 minutes and then i think it may be either shorting out or the trigger gets stuck. but idk. so now if i let it sit for a little while it works for about 5 mmin when i use it and then it starts auto-matically shooting and then when i hit the sync button to turn it off i cant use the trigger but it kinda does some single shots. if u know wats wrong with it PM me

  37. blue morris says:

    look this is really simple mod i did it today took a while cus my soilderin iron is shit how ever all u do is soldier first wire to a pin under the b button there is three pins all under another soilder this to the middle 1 next wire must be soildered literaly on the first player light just at the bottom of the led where it connects to the contoler this mod will only work if the controller is not a d10 controler u can find this out by looking next the 1st player led it shud say d21 or sumin just not d10 and only works on wireless controllers sorry for the shit spelling hope this helps

  38. Brayden says:

    What is the name of the wire you used?

  39. Aaron says:

    Ok can someone please tell me what kind of screew driver I need to open the controller
    And also the name of the wires and button
    Also where I can get them
    And finally, where to I solder them?

  40. Aaron says:

    Email me at

  41. owen says:

    You will need a size 9 Security Torx to remove the screws. It is shaped like a star with a hole in it. Look at the screws on the back of your controller you will see what it should look like. If buying one make sure its long enuf to get in there, dont buy the little hex bit type.

    The switch just needs to be a Push-to-make, the smaller the better, I got mine from Maplin £0.99.

    If you look below the A B buttons you will see 3 little points sticking out, quite close together. U need to solder 1 wire to the middle one. Now find the Player 1 LED(the 1 that lights up the quadrant on your controller), little tiny and yellowish in colour. You need to solder the other wire to the lower part of it(Good Luck:). Now solder your switch to these 2 wires, power up and fingers crossed.

  42. Harry says:

    @brandon: I’m having the same problem here…any ideas?
    Cmon guys, if anyone knows what’s causing this I would greatly appreciate the help.

  43. Daniel says:

    Will this work when it says like c16 or c15 on the bottom left hand corner under the battery pack

  44. illownunibby says:

    if you have to use this to get an edge in cod your a fuckin noob. How about if you cant play like the rest of us dont play huh? Its funny bc every time i run into you modded controller nubs i own you like you never had it…if you need or want this your the biggest vagina i know of

  45. jake says:

    this actually only works with the new controllers not the old ones. the new ones have a resistor on it and you need that. it is a small silver box on you circuit board on the front side right in the middle. cant miss it.

    • Xero Solus says:

      That’s not a resistor, that’s a crystal that determines/creates the frequency. The supporting resistors and capacitors create a square wave instead of sine waves.

  46. Adam says:

    will this work with the 5 volt controllers, I heard you need a 3 volt one for it to not destroy the controller?

  47. Alxtz says:

    ok just to clairified some things, i got the new controler(the one with the CG board/wireless)and a second one (with wire and the Matrix board).
    Wich one i should use and is it possible this work with the new one??(CG board, because i rather have a wireless one)and a last question is this still wor with the new NXE??
    Pls help and sorry for the miss-spelling

  48. mike says:

    what would happen if you just hooked the wires to the trigger spot and the power do you need the power to pules or can it be steady ?

  49. dave says:

    im using a 555 chip does this need to b programmed? or can i use it “straight out of the box”

    • Xero Solus says:

      LM555 (the standard 555 timer) isn’t programmable. There are ways to mod a controller using a 555 timer with supporting circuitry. You’ll also have to determine the proper RC constant to match the frequency you want to output. I believe pin 2 and 7 will have to be tied using a resistor. More investigation would be required on the pin-out.

  50. mike says:

    what do you do if the led comes out the mod doesnt work any more how can i fix it

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