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Optimus M - All Things Root Rooting, ROMS, Overclocking, etc.

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Old December 20th, 2012, 08:01 PM   #1 (permalink)
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Default [GUIDE] Unbricking/Unrooting/Returning to Stock Optimus M[KDZ]

Ok first things first. This will only fix certain bricks. If after factory resetting with recovery and following this unbrick guide you can't get your phone to work, try this guide: Unbrick Phone from LG Screen

The first thing you have to do is download and install the Optimus M drivers from here if you haven't installed them already.

The second thing you will have to do is download the CAB to KDZ converter and KDZ flasher from here: KDZ_FW_UPD_EN.zip

Next is to get the firmware cab file: MS690ZV7_08.S7_08.P3018.cab

Now turn off your phone (pull battery if need be), and leave it unplugged
Go into download mode (aka emergency mode) by following this:
Hold back key+down key and plug in USB chord.

Now you are ready to flash your phone

These are the instructions to convert the cab to a KDZ and flashing it:
  1. Install msxml.msi
  2. Disable antivirus software
  3. Open UpTestEX_mod2_marwin.exe
  4. Wait for the program to open
  5. Look for "Encrypt cab file to kdz file"
  6. Click the folder icon
  7. Choose the location of the cab you downloaded for the firmware
  8. Encrypt cab -> kdz Program will freeze up. DO NOT EXIT until program says Done!!! Otherwise it won't finish converting.
  9. Close program
  10. Open KDZ_FW_UPD.exe
  11. "Type" choose CDMA
  12. Choose in "Phonemode": Emergency
  13. Click the folder icon and choose the kdz file that UpTestEX_mod2_marwin.exe just made.
  14. Click Launch software update, wait awhile for it to flash and then boot, and enjoy!

If it bootloops still, try to factory reset (while phone is off, hold volume down+home key+power).
If that does not work, use joneidy's unbrick guide showed at the beginning of this thread. If you do that guide you will have to reprogram your MEID/MIN/MDN and flash the PRL. This guide will not erase any of the phone's programming but sometimes fails in certain cases of brick. LGNPST from joneidy's guide is a PITA to install sometimes, so I made this to not replace his guide, but post a method that will work most of the time and be less of a PITA to get the phone back in working order.
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Last edited by sammyz; January 29th, 2013 at 10:35 PM.
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Old December 23rd, 2012, 11:30 AM   #2 (permalink)
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Thank you for making a guide for this!! Now I can give my mom this phone!!
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Old December 27th, 2012, 01:59 PM   #3 (permalink)
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worked perfect thanx
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Old January 27th, 2013, 09:30 PM   #4 (permalink)
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the firmware link is broken!!
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Old January 27th, 2013, 10:33 PM   #5 (permalink)
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Default Re: [GUIDE] Unbricking/Unrooting/Returning to Stock Optimus M[KDZ]

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Originally Posted by mrdude5660 View Post
the firmware link is broken!!
Dont you have an optimus m plus

And yea, LG removed the firmware...
Will upload tomorrow, sorry can't today.
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Old January 29th, 2013, 10:35 PM   #6 (permalink)
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Fixed firmware link.
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Old February 14th, 2013, 04:57 PM   #7 (permalink)
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Worked great! Thank you sammyz! PS-- I had to set phone mode to CS_EMERGENCY for the update to work!!
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Old June 18th, 2013, 11:57 PM   #8 (permalink)
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when i press Encrypt cab -> kdz it just opens up my file explore and also it wont let me extract MS690ZV7_08.S7_08.P3018 i redownloaded it over and over to try again but.. wont work ...
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Old June 19th, 2013, 12:22 PM   #9 (permalink)
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WAIT i think i did it but im not sure, now my phone just boots up straight into the s/w upgrade mode, what now?
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Old June 19th, 2013, 12:28 PM   #10 (permalink)
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i tried it again and it shows this, [R&D Test Tools Log File]

13:26:48 : Launching SW update
13:26:48 : Unpacking KDZ
13:26:49 : KDZ file extraced
13:26:50 : Files were extracted.
13:26:50 : LGMobileDL Load.
13:26:50 : Port = -1
13:26:50 : Connecting to phone
13:26:59 : Check Phone mode = 2
13:27:06 : Phone type check.......
13:27:06 : LGMobileDL.DLL Loading....
13:27:06 : _SetAuthMark Ok : wAuthMark(22181)
13:27:06 : _DetachDLL Call
13:27:06 : _DetachDLL Call End
13:27:06 : Param : Path = C:\ProgramData\LGMOBILEAX\Phone\MS690ZV7_08.S7_08. P3018.wdb
13:27:06 : Param : moduleDir =
13:27:06 : Param : waitTime = 33000
13:27:06 : Param : UsbHighSpeed = 0
13:27:06 : Param : PhoneMode = 2
13:27:06 : Param : BinVersion = MS690ZV7_08.S7_08.P3018
13:27:06 : Param : AuthMark = 22181
13:27:06 : Call fn_StartUpgrade
13:27:07 : CDMA: wParam = 20, lParam = 420
13:27:07 : Model Dll Msg Not Found(20, 420)
13:27:11 : CDMA: wParam = 6, lParam = 0
13:27:11 : Step : Main Binary Flash Erase
13:27:11 : CDMA: wParam = 7, lParam = 1
13:27:11 : Step : Flash Burning(SDRAM to FLASH)
13:27:11 : CDMA: wParam = 7, lParam = 0
13:27:14 : CDMA: wParam = 7, lParam = 1
13:27:16 : CDMA: wParam = 7, lParam = 2
13:27:19 : CDMA: wParam = 7, lParam = 3
13:27:21 : CDMA: wParam = 7, lParam = 4
13:27:24 : CDMA: wParam = 7, lParam = 5
13:27:26 : CDMA: wParam = 7, lParam = 6
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Old June 19th, 2013, 01:09 PM   #11 (permalink)
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WAIT i tried it again , now it goes to the part where it says you need charge, so i will just wait and see what happens.
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Old June 19th, 2013, 04:04 PM   #12 (permalink)
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Quote:
Originally Posted by jaymixvp View Post
WAIT i tried it again , now it goes to the part where it says you need charge, so i will just wait and see what happens.
Working now?
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Old June 20th, 2013, 04:55 PM   #13 (permalink)
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yes it works thanks very much sam
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Old October 19th, 2013, 10:47 PM   #14 (permalink)
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Default data messed up

ok so the only reason I did this was to fix my data probs from a rom I installed. but my data still doesn't work. I used a program to update the prl and it updated it but it still wont find data. my bars just say x.
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Old October 20th, 2013, 01:32 PM   #15 (permalink)
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Quote:
Originally Posted by cwac12 View Post
ok so the only reason I did this was to fix my data probs from a rom I installed. but my data still doesn't work. I used a program to update the prl and it updated it but it still wont find data. my bars just say x.
Stay on stock, don't root, ask metro why. Usually they'll help fix it for free. If it's a hardware problem, you'll have to get a new phone.
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