[Optimus One, P500, V General] mak.3736:
Afraid of kdz updater , here is an alternative to flash rom and recovery

Note: Donot use this method from emergency mode unless you already have a backup of your nv

Note: using this prodcedure there should be no disconnection of phone or power cut.

Using this method you can flash "stock rom + custom recovery" or "stock rom + stock recovery"

DO THIS ON YOUR OWN RISK, I WILL HAVE NO LIABILITY IF YOU BRICK YOUR PHONE !!!

download lgmdp : Download Here

1. disable lg modem

( in right click mycomputer->manage->device manager->modems->right click on lg modem disable it)

2. now connect your phone to pc.

3. start lgdmp

4. click "select port"

Phone will be automatically detected press "connect"

(close the pop up window of image select generally you will get it on connect of lgmdp)

5. backup nv for safety (tools->nv backup)

6. After backup , store this nv file somewhere in computer (and remember where you stored lol..)

7. close lgmdp

Now download stockrom+customrecovery

Download v10e ROM(unrooted)(2.2.2) with cwm recovery: Download Here_v10e

(or)

Download v20c ROM(unrooted)(2.3.3) with cwm recovery: Download Here_v20c

Step 1. Extract (use "extract here" for a noob)the downloaded file stockrom+customrecovery

(be sure you have extracted without error in zip extraction and you have all 13 files in extracted folder)

To flash stock rom + custom recovery skip step 2 and follow from step 3 to step 7.

To flash stock rom + stock recovery follow from step 2 to step 7 (including step 3).

Step 3: start lgdmp

Step 4. click "select port"

Phone will be automatically detected press "connect"

Step 5. select the extracted folder "stockrom+custom recovery" as "image folder or image select" in lgmdp

Step 6. Select "Erase EFS APPS" in drop down box of "NVBackup/Restore"

(Caution : donot select other options they might stuck your phone in air plane mode with no gsm )

Step 7. press start or download

DONOT DISCONNECT YOUR MOBILE UNTILL IT SHOWS DOWNLOAD COMPLETE AT BOTTOM

it shows in middle trying to connect to phone etc. donot touch the phone it will be automatically connect everytime.

After download complete you are done with procedure.

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If you want to flash any other stock rom (kdz) file from lgmdp (Check this url)

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Note : Creating nv with different imei is illegal.

For people who messed up with nv, lost their nv follow http://xdaforums.com/showthread.php?t=534704 to create nv.

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NV will be automatically restored at the end before you see download complete.

If any error occured while restore of nv

follow below steps to restore nv

put the nv file which you backed up in first part of procedure in this order*

create new folder

- rename folder: <your_imei_(on_which_nv2_is_created)>

- create new folder in <your_imei_(on_which_nv2_is_created)>

named <port no.> on which your phone is connected

(ex:for com4 name folder as " _COM_4_" (without quotes), you can find

port number when you click on "select port" when connecting mobile to

lgmdp under port column.)

- now place nv2 file in this folder <port no.>

- so now u r nv2 file is in

" \<your_imei_(on_which_nv2_is_created)>\<port no.>\ "

- now place lgmdp.exe and <your_imei_(on_which_nv2_is_created)> in

new folder

- start lgmdp

- "select port"

- "connect"

- press "NV Restore"

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