A case of disaster recovery !

Discussion in 'Viewsonic gTablet Technical' started by mydave, Aug 22, 2011.

  1. mydave

    mydave Senior Member

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    There were several PM's asking for a way to recover from a disaster. Here is one of them:

    So, I thought that it'd be best to create a new thread which can promote a good approach toward similar situations.

    The first question is : 'can you nvflash it to stock rom ?'

    If yes, then try this nvflash4349rev4.zip . Detailed Instructions included in download. It will bring the tablet to 1.2.4349 with 1.2 bootloader and clockworkmod 3.0.2.8 ver 5. Most rom's are on, or being moved to, 1.2 bootloader base. So, this procedure will place the tablet in a good state to flash any rom that is based on 1.2 bootloader.

    If you can do the above, then after the completion, stop and return with question about a rom that you intend to use. We then move forward cautiously to get you to where you want to be.

    If you cannot do the above, return with details what you have seen while trying the above.

    Dave,
     
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  2. sharpe351

    sharpe351 Member

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    Thanks Dave. It will give us a good go to place for a hairy recovery. Especially me. I tend to "break 'em" good.

    We may want to sticky this.

    sent from my CM7 Gtablet using Tapatalk
     
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  3. myzoo

    myzoo Member

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    at this point no, my pc sees the usb drive, but it is not opening a file, device manager is showing NVmediamobile, if you open my computer it shows a J; file but then it asks me to insert a disk , so it is seeing the usb but something is not telling the computer where to put it would be the best way I can explain it
    Thanking you again Jaye
     
    Last edited: Aug 22, 2011
  4. mydave

    mydave Senior Member

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    Please download the file in the original post, extract it to your desktop, read the readme_first.txt, then follow it.
    Can you do that ?
    You performed nvflash before ?

    Dave
     
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  5. myzoo

    myzoo Member

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    yes I have nv flashed from G tab for Dummies
    I am downloading as we speak but may not be able to try till Tue
    I will keep my fingers crossed.
    Thank you again Jaye
     
  6. myzoo

    myzoo Member

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    Dave, it my be in usb debugging which may be why my pc is not seeing it, but I can not boot far enough to turn that off.
    hope this helps I am trying to research
    Jaye
     
  7. mydave

    mydave Senior Member

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    If you refer to the usb debug mode in setting, then it has nothing to do with the state you are in.

    You said that you flashed Vegan RC1 (gingerbread rom)
    Then could not download Pershoot (kernel)
    Therefore you flashed Clemsyn + Calkulin 5 (froyo rom)
    Then it won't boot . . .

    I can see that you are very confusing, and making error by guessing.
    Stop all that.

    Try the path that was outlined in the first post and let us know the result.

    Dave
     
  8. sharpe351

    sharpe351 Member

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    Crapped out on an install of HoneyComb (Flashback 7.2)... :mad: Got NVFlash up and recovered to 4349 on the 1.2bl (installed the drivers when I fired up the tab the first time). Piece of cake (literally, first try) :p . Figured I'd give you guys an update.... BTW, I used Roebeet's instructions here. They will make anyone's life with NVFlash much easier.

    *edit* Update works much better when going from stock 4349.... It should say that you MUST start from a 4349 1.2bl image to install Flashback 7.2

    -Mike
     
    Last edited: Aug 23, 2011
  9. myzoo

    myzoo Member

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    Dave, trying all over again. tried 3 pcs. when I try to install APX driver I get "winusbcoinstaller.dll" error
    can not find this anywhere
    been looking
    thank you again Jaye
     
  10. mydave

    mydave Senior Member

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    Did you use the download file that I posted?
    Did you try the usb driver that is included in that file?
    How did you nvflash before?

    Get back to us with the details of what you did, step by step, so we would guide you.

    Dave,
     
  11. sharpe351

    sharpe351 Member

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    You MUST follow the step by step, otherwise no bueno. :(

    sent from my FlashBack 7.2 Gtablet using Tapatalk
     
  12. myzoo

    myzoo Member

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    Yes I used the download you gave me. It took several times before my PC saw my tablet the first time I flashed. Now the device manager saw the USB and it loaded the APX driver. Said new hardware installed and ready to use. so step 1 c/w.
    Ok now I have the file downloaded the file unzipped it. Awaiting next step
    Thanking eveyone in advance
    Jaye
     
  13. mydave

    mydave Senior Member

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    Alright, the above is the readme file that is included in the download.
    Now, please tell us that you are able to complete steps 1 and 2 above, is it correct ?

    Now, start step 3. If windows does not open the CMD windows, then you will need to manually start a CMD session and run the 'nvflash_gtablet.bat'. Am I clear enough?

    Dave,

    Edit: I did post an older readme file earlier. The correct readme file is shown above. Sorry.
     
    Last edited: Aug 23, 2011
  14. myzoo

    myzoo Member

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    Dave, Thank you very much I have made it through step 3, trying to find this file ClockworkMod.bat' in step 4
    Thank you all again
     
  15. mydave

    mydave Senior Member

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    Excellent !

    Please read my post #13 again.
    Step 3 installs both the stock 1.2.4349 as well as cwm 3.0.2.8.
    Now proceed to step 4. Again, read the post again fully.

    When you completed step 4, come back and tell us what rom you want to use.

    Dave
     
    Last edited: Aug 23, 2011

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