How to Fix Emergency Mode!! Loop on LG P500 Optimus One

Few months ago I got LG Optimus One P-500 that was running official Android 2.2 Froyo and just today I was manually updating it to Android 2.3.3 Gingerbread  using KDZ Updater.

Everything was going fine until my phone got into Emergency Mode(yellow screen) and suddenly, KDZ updater stopped responding and shut down. I started KDZ updater again but this time it was saying “PHONE WAS NOT FOUND” and the phone got stuck into all yellow screen with Emergency Mode!! written on it. I tried to remove the battery and then turned the phone on but it was only getting started in Emergency mode.

I thought my phone was bricked but after researching for some hours, I found a fix for that and my phone was alive again.

How to fix Bricked Lg Optimus One P500/Stuck on Emergency Mode loop

Step 1: Disable LG Virtual Modem from your computer. To do that, right click on My Computer on your desktop and click Manage. Now from the left-pane, select Device Manager. From the right side, Expand Modems and right click on LGE Virtual Modem and choose Disable. [Note: If you don't find LGE modem in device manager then skip this step]

Step 2: Remove the battery from your Phone and connect your phone with your computer via usb cable.

Step 3: Run KDZ Updater and select 3GQCT in Type and EMERGENCY in PhoneMode as shown in the screenshot below.

Step 4: Select KDZ file to which you want your phone to be updated to and finally hit Launch software update button.

Step 5: Please wait while your phone gets back to life.


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  2. Anonymous says:

    you saved my lg!! thank you sooo muchh

    • David says:

      It doesn’t work on my LG O1. I’m from Chile, and on KDZ it says: Phone was not found!
      why’s that? And my cellphone doesn’t power-on either..

  3. Abhishek says:

    u r genius dude…………thanks a lot

  4. sid says:

    It displaying PHONE WAS NOT FOUND! please help. also please send me the link for V10B_00.kdz . (previously i downloaded from XDA)

  5. Erick T. says:

    Thank you so much for the help. The yellow emergency screen is out now but my main problem persists. If you can help me, that would be so nice. My LG Optimus One P500 can’t find any network. I’ve tried different sim card of different carriers, but nothing has changed. I’ve even rooted it, installed a custom rom, upgraded from V10E to V10S (i guess, hard to remember) but until now still no network – emergency call.
    Please any help will very appreciated…

  6. John Mart says:

    I hope it will works still in progress of downloading the required files to save my lg optimus one P500

  7. Mark Joseph says:

    anyone please help me i need a sample of optimus one “SU370″ imei. i just need the first eight digit. thank you.

  8. Hugh says:

    Excellent instructions! I had to run the USB drivers a few times – got it connected. I disabled the accunt right after and ran the wizard. I think the faster you do it the better – took few tries to get it connected. Thanks!

  9. chris says:

    Genius man! I was stuck with that until I read I have to disable the modem driver!

  10. Ninan George says:

    Thanks Admin for this wonderful blog. You saved me this time.

    Actually I have done a ROM upgrade for LG on another phone and ended up with the same situation. I ended up stuck on the Emergency Mode.

    The solution was to physical remove the SD card and turn on USB debugging before starting the whole process.

    Best regards, Ninan George

  11. Prakash says:

    Oh man … it really saves my phone … thanks for sharing this

  12. DBWOW says:


  13. DBWOW says:

    after updating lg united driver, i proceed with same kdz update process. but now i got different problem with wparam:000 and iparam:502 error. and update could’t be continue. so what should i do further..?

  14. sanket nerella says:

    while ruuning kdz i cant get ny option to specify the type n phonemode……..dat options arent working…pls hlp m available nw……rply asap…..i beg..pls

  15. sanket nerella says:

    thnx worked finally……….yesterday wen i was tryng i got….”phone was not found” error n the update failed… i tried it again restarting my pc….n i connected my usb using vol minus+vol plus+power on buttons together….n later tried to update n it worked……..

  16. luis says:

    saludos tengo problemas al hacer los pasos se reinicia y luego se vuelve a poner en Modo Emergencia aver si me pudieran ayudar y gracias

  17. David says:

    Where do I go for the KDZ Updated mentioned in Step 3? Thank you

  18. kaen says:

    You are a true genius man! Good work , thanks a lot

  19. Mangesh says:

    Thanks a lot….it works.Follow the procedure as given below…..
    1.Remove the battery from phone
    * go to the following link and download the .kdz file
    *Select V20c Kdz file(downloaded file)
    2. *Extract KDZ rar file
    *Install msxml.msi
    *Connect the P500
    *Run KDZ exe
    *Now, Select Type=3GQCT, PhoneMode=DIAG

    *Launch software update
    * Stay back for 10 Min.
    Phone should restart automatically if everything is correct.

    enjoy….FREE OF CHARGE AND SAVE MONEY !!!!!!!!!!!!!!!!

  20. roby says:

    nice work.! it really revived my phone. it worked on my LG Optimus L3. thanks.!

  21. oguzhan says:

    thank youuuuu :) ))

  22. Juiyaii says:

    Did this work in LG P509?

  23. nanajoey says:

    any help concerning the lg p505 emergency mode

  24. mydi says:

    Any links for kdz? The ones on the lg site are broken.

  25. mostafa says:

    plz helpe me my phone in this problem but it not bring the Emergency Mode and not wake up never plz what can i do ???

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