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Root Root your updated LG Marquee phone step by step.

Finally managed to get it to work tonight although i'm still not sure how I did. I kept running the program and turning the phone on over and over again and then after it not working after the umpteenth time I just sat it down and walked away and when I came back it had the S/W update screen on it. So happy right now and just installed CTMod on it. Stock was driving me mad
 
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For all of you who are unable to install the KDZ image, who are having lParam wParam Error Codes, I have figured out a guaranteed method for loading the KDZ file on the LS855:

1. Set Type: CDMA -SmartPhone
2. PhoneMode: EMERGENCY
3. Issue adb command "adb reboot recovery"
4. Phone will reboot into recovery, when you see the android with the box on the screen, immediately click Launch Software Update button.
5. Profit
 
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hello guys, if you dont mind could you help me :(
i have a problem with my LG marquee. well its on zvc stokrom with no root.
i try to downgrade with any method but still didnt get any succeed.
trying with other methode on other forum that using 12second count i never make it :(
my only problem is my baseband "unknown"
dont know what to do, trying to factory reset it still unknown baseband.
tell me what to do to get my baseband works again

thx
 
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hello guys, if you dont mind could you help me :(
i have a problem with my LG marquee. well its on zvc stokrom with no root.
i try to downgrade with any method but still didnt get any succeed.
trying with other methode on other forum that using 12second count i never make it :(
my only problem is my baseband "unknown"
dont know what to do, trying to factory reset it still unknown baseband.
tell me what to do to get my baseband works again

thx


Have you tried Any of the system update options in your "settings>about phone>system updates"?
 
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Have you tried Any of the system update options in your "settings>about phone>system updates"?

i wish i could do that :) i dont have any network on my phone.
i try all on this thread was never succed with me.
is there any was to make my baseband alive again?
perhaps doing adb command to wipe dalvik cache. coz i dont know the parameter to execute with adb.
im hopless wipe dalvik can be do with custom recovery right? than im stuck on all step to downgrade.
can someone please tell me how to wipe dalvik cache with adb? right now im on zvc stok rom with stok recovery.
 
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[R&D Test Tools Log File]

10:42:29 : Launching SW update
10:42:29 : Unpacking KDZ
10:42:42 : KDZ file extraced
10:42:51 : Files were extracted.
10:42:51 : LGMobileDL Load.
10:42:51 : Port = -1
10:42:51 : Connecting to phone
10:43:00 : Check Phone mode = 1
10:43:03 : Phone type check.......
10:43:03 : LGMobileDL.DLL Loading....
10:43:03 : _SetAuthMark Fail
10:43:03 : _SetAuthMark Ok : wAuthMark(65535)
10:43:03 : _DetachDLL Call
10:43:03 : _DetachDLL Call End
10:43:03 : Param : Path = C:\ProgramData\LGMOBILEAX\Phone\LS855ZV9_11.S9_00.P60680.wdb
10:43:03 : Param : moduleDir =
10:43:03 : Param : waitTime = 33000
10:43:03 : Param : UsbHighSpeed = 0
10:43:03 : Param : PhoneMode = 1
10:43:03 : Param : BinVersion = LS855ZV9_11.S9_00.P60680
10:43:03 : Param : AuthMark = 65535
10:43:03 : Call fn_StartUpgrade
10:43:53 : CDMA: wParam = 100, lParam = 72
10:43:53 : Step : Upgrade Error2 - Error Code : 72
10:43:53 : ResetStartInfo() Call
10:43:53 : _DetachDLL Call
10:43:53 : _DetachDLL Call End
10:43:53 : FreeLibrary Call
10:43:55 : FreeLibrary Call End
10:43:55 : ResetStartInfo() Call End
10:43:55 : ===FINISHED===
10:44:01 : OnModelDllMsg(OnMsgFromModelDll-CDMA) delete m_pLGCyonUpdate
 
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hey everyone.....I know this sounds noobish.....I've rooted several phones in the past.....but i cant find LG United Mobile drivers 1.2.1 anywhere(which is what the best instructions list as prereq) ....to root my LG855 boost......the lg site gives me 3.7.2 .....& they dont work on vista....i get...B project usb driver fail.....can one of you masterminds please help ! ?.....btw links to usbfix is not a valid win32 app.
 
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Ok so i have installed the Sprint rom on my boostmobile device succesfully. (ZV9). But when I try to root I get this:
 

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