Pot Tweak for Xbox 360 Lite-on Drive

I had this Liteon DVD Drive that wouldn’t read disks, no matter what. ‘Disc Unreadable’ or ‘Open Tray’ or ‘Dirty disc’ is all that I could see. These errors mean, it could be a bad write or a bad DVD drive. I have made a check list that would take you out of this dilemma.

If it isn’t the DVDs, then you can try a pot tweak. By doing this, you actually give the DVD Drive’s laser a little more juice (I mean power).

Some Theory:

Basically, pot means potentiometer (variable resistance). This resistance is connected parallel to the laser. So, when you decrease the resistance of your potentiometer, you can give the laser a little more current. Therefore, the laser will have more power.

So, from now on, your DVD laser will work a little more harder to read your disks.

What you need:

1) Multimeter
2) Philips #1-1 Precision Screwdriver.
Get this kit, this would be handy for opening the xbox etc.
1) Open up your Xbox 360 (1 quick google search would help)
2) Open up your DVD Drive (Philips screwdriver would do)
3) Now slowly open the 2 parts of the metal shell.
4) When you are done opening, you’ll find this.
(Sorry for the crappy pic, was in a hurry)
5) Set your multimeter to 20k Ω and place the probes on the points mentioned in the pic.
6) You’ll get a reading ranging from 5-6k Ω (Mine was 6.1)
7) Very carefully turn the pot anticlockwise (Clockwise if you have drives other than Lite-on) using your Philips #1-1 Precision Screwdriver.
8) Again check the reading. You should have decreased around 0.1k Ω.
9) Check if your discs work. (Install it into the hard drive for best results)
10) If the discs do not work, repeat steps 6 to 9 until your discs work. But DO NOT GO BELOW 3K Ω, If you do you’ll have a good chance of burning up your laser.
Questions? Comments are welcome.

So lazy that he can’t even fill this column out.

  • Suhas

    went too low? try reverting the settings..

  • fobexmouth

    Nice one it works a treat! I don't have an AVO meter so I went through the pain staking task of trial and error; I turned it very slightly, re-assembled the console(partialy)and tried it first with a dvd then a game until it worked.
    I think these idiots on youtube need correcting too, before people end up completely breaking their consoles with weird and wonderful voodoo magic paper cleaning tricks and stuff.

  • Anonymous

    I apologize for the forthcoming lengthy post, but I didn't want to leave anything to ambiguity…

    I have the Benq drive and i've done alot of tinkering with the pot, started at 3.7 and rarely reads discs. I only have room for 1 game on the hard drive so that's the ONLY game i can play right now. Sometimes it reads first try and i can get the start i need to play from hard drive and sometimes it takes 30 minutes. I've slowly changed the pot value at increments of .2 (3.7 -> 3.5 -> 3.3, etc) until i reached 2.7 and that's when i gave up. At EVERY VALUE DvD's play perfectly fine, drive doesn't make crazy noises but for 360 games it goes apes**t then. ANY possible fixes would be appreciated. (on a side note, what is the OTHER pot for? music cd's only?)

  • Suhas

    ok, this sounds a little harsh but, some discs aren't really made for your drive.

    Once, I had verbatim discs with different batch numbers. My liteon drive read discs from the 1st batch with perfect ease but it refused to play the other batch no matter what! I still can't figure out the reason.

    Also, make sure its not ur DVD causing problems.

    music cd – i guess so..

  • madferret

    Good Tut @Suhas Glad I read it else I would have been turnig the pots anticlockwise as all the other drives, stay sweet

  • Anonymous

    ive been at this for weeks working on every red ring i can fix them all but every time i fix one it wont read disks so read up on it and tweaks but i still cant get ne of them to work i got six in my room all work but wont read games who want to buy a 360 that wont read games!

  • Anonymous

    Hey my bro decided to try this fix using a youtube video and unscrewed the pot right out. Is it possible to screw them back in or is the dvd drive totally trashed now?

  • Nick

    Great tut dude took me all of 15 min of trial and error to get my drive back up and running, thanks!

  • spudgun

    great work mate,has sovlved the problem with my lite-on drive from elite xbox,which has never been able install games to hardive before.

  • Jayger

    I just Recently flash a stock Lite-on 78450c to Lt+.. After I would play some of my back ups but not all mostly new AP 2.5 games ( all back ups are properly patched)… eater it would give open disk or dirty disk, original games seemed to play fine… I did the POT reading and it was 6.12 just like Sahus… I found out very quickly that the adjustment is very sensitive… I think I did a quarter turn on the DVD POT and the new reading was like 3.47…lol so I carefully set back to 5.45 which is like 600ohm adjustment but to be honest taking the drive apart over and over is a pain in the ass… never mind the fact my SATA connector is very lose and have already had to soldering in a new pin…lol… Anyway with my first test NFS Hot Pursuit started right up fast too.. this is AP 2.5 game and no problems so far… i will test and update later if anyone is interested…thx for the info Sahus great post…

  • Jugernaut

    Unbelieveable! Worked first try. Thank you SO much!

  • Jayger

    NFS Hot Pursuit froze a few mins in…. new setting is 4..05 seems to be solid… any scratches on the disk and freezes… lite-on seems much more picky then the benq… benq is by far the best for flashing if you ask me..

  • amissss

    Hi I would like to find out whether it is possible to somehow repair the laser eyes, because I burned it. or it may only be replaced by a new one.

  • @amissss…. its almost impossible, unless you have professional equipments in hand…. you are better off buying a new one..

  • amissss

    Thanks for the answer

  • blake

    i am having fuckin trouble with the actual pot reading with multimeter,i place the two wires on the silver things and nothing happens,help anyone? just get the same reading of 1.

  • andy

    OMFG Thankyou sooo much

  • John

    Woohoo, fixed my console first pop. no multimeter, just tried out an xbox 1 game and then bam,………….. read the disc then tried to play but needed the update for the xbox 1 emulator. now gotta look for my control and score a couple cheap 360 games from eb games. good score for 60 bucks – 360 hdmi console, hdtv leads and power pack and 20 gig hdd.

  • Billytheman12345

    i cant find my multimeter how can i do this without it

  • I’ve done this and it still doesn’t work. I’ve tried practically everything that has been on YouTube.

  • I’ve done this and it still doesn’t work. I’ve done practically everything thats on YouTube aswell. Can anyone help?

  • Jeromie23

    hey guys i need some help please please if u have a lite on drive rite and u didn’t save the bin key and all its saying is play dvd for games is there any way i can get back my key

  • Vijayroxx

    Hey Suhas… Im from bangalore too! can u please tell me where to get the multimeter and philips screwdriver kit and how much they cost….. I want to follow your instructions to the tee…..

  • Pingback: LiteOn 74850c LT+ 2.0 OPEN TRAY ERROR()

  • Jamal_424

    for how long has it been doing this

  • king 678

    Holy shit it works

  • Tom Bum

    When I go below 5.0k the disc only spins one time for about a second.  Any suggestions?

  • BrotherBoil

    YEs, you can retrieve the DVD key from the corresponding consoles motherboard via the RGH or Reset Glitch Hack. You also need A little money and a lot of skill to accomplish this, but it is possible to get the key for your hosed drive. Next time pay attention to what you’re doing.

  • Lrrystringer80

    My multimeter only has 200k and 200..can i still use it and wut setting will i use

  • what should the cd pot be

  • OMG< thank you! This worked for me! My original reading was 6.12K and I adjusted it to 5.95K. This is a Liteon that is like 4 years old, so it's slowly wearing out *lol* I think I just got more life out of it.

  • Some guy

    Pot in my console had 6.13K reduction to 5.5K cured the problem. 🙂

  • Devin

    Is there a way to reset this? without a multimeter? Like factory reset? Message my gmail

    @[email protected]

  • Devin

    Go higher. That’s the original “double click open tray error.” 🙂

  • SJC

    My original X box 360 was having a harder and harder time reading discs until it wouldn’t read any.
    tried this and a very small decrease from 5.16 k ohm to 5.04 k ohm and it now is working much better reading 3 out of 4 of my games fine again.

    It took several trials to determine this was the best setting for mine – more or less was not as good. It take a very small hair of a turn to make this difference.

  • This is some bull

    your teling me no one has the cd pot so i have to open my other xbox just to find out

  • aUSAF


  • are you sure thats the original dvd drive. i had two xboxs and swapped dvd thinking it would work and it doesnt without flashing and i dont have a sata chipset or computer. Anyways the flash rom under glue could be bad or corrupt or it could be a drive from another xbox and you will be able to play dvds but not 360 games. i want to know if thats your original drive that gives you that error, because i have a third xbox and i wonder if i can fix that by replacing laser or if someone ot the wrong drive in it. also the case has a different serial no when i checked the dashboard so i think i was kinda jipped when i bought that one.

  • i think my hitachi drive was 3.6 and 4.27 to start. i first mark it with marker then wrote starting values on board,

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