Root Problem


  1. DasXero

    DasXero Active Member

    I've been trying to get my Marquee to downgrade from ZV4 (Boost), and no matter what I do, it won't work. And I think it's because whenever I plug in my phone it won't install drivers for "B Project USB Device" or the "CDC Serial" or "CDC Ethernet", but it'll install drivers for the other 3 things.

    Can anyone help with this?

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  2. tombob

    tombob Well-Known Member

    Did you install the LG United Mobile drivers 1.2.1 first? If not, download and install them from the LG website then let us know what happens. Good Luck.
  3. DasXero

    DasXero Active Member

    Yep. Used those drivers, didn't work. So I tried multiple different versions, then went back to those ones again and tried rebooting. No matter what it doesn't want to use those drivers.:mad:
  4. tombob

    tombob Well-Known Member

    Oh well, too bad it couldn't be something easy like that. Sorry, guess I can't help you.
  5. joeycmb

    joeycmb Well-Known Member

    do you try DooMLoRD_v4_ROOT-zergRush-busybox-su ?
    work for me!
    you have to turn off your antivirus before run it make sure you install drivers for LGmarquee first
  6. DasXero

    DasXero Active Member

    no I haven't I dont think, what is that?
  7. The~Skater~187

    The~Skater~187 Well-Known Member


    What O.S. are you running on your PC?
  8. joeycmb

    joeycmb Well-Known Member

  9. wetbiker7

    wetbiker7 Well-Known Member Contributor

    The step by step process worked for me. The only thing that I had to change was the Windows enabler, I had to go down in the task bar after activating it, right click on it and change it to ON. Then, once I ran the KDZ_FW_UPD_E, I had to manually go in and set it to CDMA- Smart Phone(WM) Phone Mode (DIAG). It was not set on CDMA- Smart Phone (WM) by default like the TUT says it should be.

    I waited 2 seconds to turn my phone on and it worked like a charm.
  10. joeycmb

    joeycmb Well-Known Member

    not for me when i did root step by step... but step 12 didnt work for me ...so i root my marquee with DooMLoRD_v4_ROOT-zergRush-busybox-su ...works on 1st run
  11. wetbiker7

    wetbiker7 Well-Known Member Contributor

    Once I got those two issues fixed mine went smooth as could be.

    The only other issue I had was with Boost. It took them over a week to get my mms working. They had finally decided to send me a complimentary new phone after going round and round with them. I got off the phone with them, tried to do a master wipe one last time and by golly... my mms started working about 10 minutes later. lmao Heh..... go figure.:rolleyes::D

    Who knows..... maybe they'll still send it.... SLAP!!! Oh, excuse me.... I was dreaming there for a minute.:D

    Honestly though, I'm just glad to have a fully functional phone again running CTMod. I was without it for 2 weeks while LG replaced the board. Gotta love that factory warranty!
  12. joeycmb

    joeycmb Well-Known Member

    :thumb: i dint f mine yet one of this days maybe best buy will see me
  13. wetbiker7

    wetbiker7 Well-Known Member Contributor

    Hopefully not. Hardware failure sux. My phone was running fine, I tried to wipe the sd card and then reboot. When I rebooted it just died on me. No power at all.
  14. DasXero

    DasXero Active Member

    I've tried all that as well, still didn't work.

    Windows 7 Ultimate x64

    Does anyone know where the EXE for the LG drivers actually installs? If I knew where it installs, I'm sure I could manually select my phone to use those drivers.
  15. The~Skater~187

    The~Skater~187 Well-Known Member


    Do you have service pack 1 installed? I had the same problem until I installed service pack 1, then it worked like a charm
  16. wetbiker7

    wetbiker7 Well-Known Member Contributor

    No doubt, bro. Once everything is set up the way it's supposed to be it works perfect. Well, it did for me anyways. :p
  17. DasXero

    DasXero Active Member

    Of course I have SP1 installed! I like being up to date on things.
  18. The~Skater~187

    The~Skater~187 Well-Known Member


    Ok. Just wanted to be sure
  19. DasXero

    DasXero Active Member

    Still having trouble with this. Where do the drivers get installed to?
  20. The~Skater~187

    The~Skater~187 Well-Known Member


    Should be in C:/windows/LG(something)
  21. DasXero

    DasXero Active Member

    Thanks, was close to that.. too many drivers, going to be hard to figure out which ones are the right ones. Ah well. If I figure it out, I'll post my results so anyone with similar issues can fix the problem
    The~Skater~187 likes this.
  22. DasXero

    DasXero Active Member

    I have no idea how it was fixed, but Im pretty sure it installed all the drivers now. What I did was uninstall about 15 programs, and deleted about 100gigs of stuff and then I randomly plugged in my phone while it was off and it got the drivers. I don't understand how, but it works so I won't question it.

    Thanks everyone!
    The~Skater~187 likes this.
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