[GUIDES] Downgrade ZVD/ZVC To ZVB/Emer. PB Recovery

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  1. gbiggie

    gbiggie La patience et le pardon Guide

    A true way to return to stock /unrooted :)
    Many thanks to dual18 and Jackpot08 for the original post and links on this much needed process. Props to matter0ni also who contributed information needed to help the process run a bit cleaner.

    Prior to beginning back up all important documents, pictures, contacts, settings, ECT.

    This is the link to the Downgrade guide with screenshots included:

    Emergency Phone book Recovery:
    For when your phone becomes unplugged or your computer crashes while in the process of upgrading your version.:afraid:
    Budde2 has done this what 3 times now:confused:(LMAO that day you said yeah gonna break it to get the pics)

    How many times for you Amazin1988 I have lost count:questionmark:(your new nickname=crazy mofo) HA

    epayne123 believe it was once or more for you:questionmark:

    And me once;)
    This is the Emergency Phone book Recovery guide link:

  2. mike760534211

    mike760534211 Well-Known Member

    I have tried to follow these directions to the letter from both Win7 Ultimate 64-bit and WinXP 32bit Professional.

    It gets all the way to 99% and then fails and gives me an error message.

    I have hard reset my phone and retried and it is still failing.

    I have attached a screen shot of the error message that I am receiving from LGNPST.

    I am at a loss as to how I can get my phone downgraded back to zvb

    Attached Files:

  3. gbiggie

    gbiggie La patience et le pardon Guide

    I have never seen that before...I will see if I can come up with a solution for you.
    Have you totally uninstalled the programs on your CPU and start anew?
    budde2 likes this.
  4. mike760534211

    mike760534211 Well-Known Member

    Yep/ In fact I started with a clean PC that had nothing on it but WinXP and the software needed for the computer to see the phone to try and downgrade
  5. kdm_2809

    kdm_2809 New Member

    the link for skin.dll is down. Can someone repost? thanks
  6. gbiggie

    gbiggie La patience et le pardon Guide

    ShinySide likes this.
  7. gbiggie

    gbiggie La patience et le pardon Guide

    I can't find anything on that error!:mad: Try deleting everything and start anew...I just ran the program again (starting from scratch -cause I can! ;))
  8. Nuknfutz

    Nuknfutz Well-Known Member

    when downloadind skin.dll, it gives error stating it was loaded but the entry point dllregisterserver was not found. make sure it is a valid dll or ocx file and try again. any suggestions? windows 7
  9. gbiggie

    gbiggie La patience et le pardon Guide

    I just verified that the link is good this am. You are getting this error when downloading it ?
  10. xlegitimate

    xlegitimate Well-Known Member

    you forgot the click register dll step gbiggie
  11. xlegitimate

    xlegitimate Well-Known Member

    it asks me for my SPC and when I enter it, it says its not matched(wrong)

    EDIT: Managed to get it to work. the whole process took around 13 minutes to complete, is that normal?
  12. PlayfulGod

    PlayfulGod Well-Known Member Developer

    or a lil more yea.
  13. kungfu411

    kungfu411 Well-Known Member

    I'd love to be rooted and try these new romz but. Last time i tried to downgrade with my lg optimus M I bricked it and did everything i could to fix it but at the end. had to get a new one from metro and took em almost three weeks to get me one. so I might wait till there's a new root.
  14. gbiggie

    gbiggie La patience et le pardon Guide

    I have done it 3 times now with no issues..it IS a painless procedure . :)
  15. kungfu411

    kungfu411 Well-Known Member

    okay trying this lol. i did everything it says unknow device. i can see an elpase time but no % number moving
  16. gbiggie

    gbiggie La patience et le pardon Guide

    If no progress aftersay 6-7 min..clown task manager your CPU. and end th LG. processes . Open everything up and try again.
  17. kungfu411

    kungfu411 Well-Known Member

    it says not support this "Unknown" Device Please check the model DLL installed successfully
  18. gbiggie

    gbiggie La patience et le pardon Guide

    Register the Vs910.DLL file again. In the program hit file -select dll-and select the Vs910.DLL. Should work now.
    biggoog likes this.
  19. kungfu411

    kungfu411 Well-Known Member

    Thanks for you're help. I'm downgraded and rooted. was so scared lol. hope it was worth it. now I need to try these custom roms
  20. gbiggie

    gbiggie La patience et le pardon Guide

    No problem! :) Do a backup in recovery before anything else..enjoy!
  21. kungfu411

    kungfu411 Well-Known Member

    Thanks believe me i will i've read enough on here not too lol
  22. gbiggie

    gbiggie La patience et le pardon Guide

  23. carlos15

    carlos15 New Member

    someone help me when i put the MS910ZVB file to upgrade on my phone it just remains at 0% and when i try to start over the .bin format wont appear when im looking for the .tot file
  24. gbiggie

    gbiggie La patience et le pardon Guide

    Expand and diminish the list to the right of the port in the program. save the tot file to your desktop so that it will be easily found.
  25. gbiggie

    gbiggie La patience et le pardon Guide

    Yes a little messy but it has been awhile since I have worked on a CPU...been doing everything from my phone for the last year :eek:(Its a beautiful thing!)

    If anyone needs any help just post a new reply and I will help you anyway(well almost anyway:rolleyes:) I can!


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