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jockyw2001
Posts: 27 | Last online: 09.22.2017
Date registered
09.09.2017
Sex
not specified
    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.17.2017

      Zitat von wdaniels im Beitrag #53
      I just did mine too and all problems seem to be fixed :) I did notice one minor side effect: the manufacturing date and the ownership date in the BIOS system overview are blank now. I'm assuming this is stored somewhere in an UEFI var but got cleared now.

      The unique dell service tag however is correct, so I'm wondering where that is stored. Out of curiosity, @jockyw2001 could you check if yours is still the same as the one printed on the chassis? You might have mine now because you used my full dump :)

      Yes, I had noticed that too, the manufacturing and ownership date are blank. Apparently they are stored in some kind of manifest UEFI var. My service tag and expresscode are my original. Perhaps they are stored in the RTC chip in a NVRAM area?

      Glad you solved your problems too and very glad you originally suspected the ME and you found my thread :-)

      Dirty BIOS-es, corrupted MEs, what disasters can we expect in the future ...

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.17.2017

      My tablet is working 100% okay now. Actually I had to redo the steps of flashing first your cleaned spi dump immediately followed by flashing the clean dell bios region and finally greset the device. The reason was that my ME firmware log in password didn't work anymore. It said wrong password and the default "admin" didn't work either. So I advise to do it the same way as I did. Good luck with it tonight!

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.16.2017

      Zitat von wdaniels im Beitrag #48
      Yup that's exactly the issue I have been trying to solve. Normal BIOS down/upgrades didn't solve anything, so hoping that flashing through FPTW will help.

      Yes, it's fixed :-) All is well now. Fast boot and no more spurious ASF2 entries in the power eventlog.

      1
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      fptw64.exe -f section_0_A.23.data -bios
      fptw64.exe -greset
       
       

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.16.2017

      Zitat von wdaniels im Beitrag #45
      @plutomaniac I was also considering that option. I will try to load the clean BIOS region extracted from the Dell HDR onto the computer through FPTW tomorrow and see what happens.

      I'm about to do that now. Power eventlog always shows "Power Off - ASF2 force off" followed by a "Power On - Not applicable" 4-5 seconds later. That's not normal and I want to solve it.

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.16.2017

      Zitat von wdaniels im Beitrag #41
      It is stored in the BIOS region of the flash, by using my dump you probably have overwritten it already with the settings I had and where BIOS is locked.

      Yup, I had to disable it again.

      Do you still have any remaining issues besides the double POST? Can you look up the driver version of the ME Interface driver? I am on 9.5.15.1730

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.16.2017

      @plutomanicac: I downloaded and cleaned wdaniel's spi dump and can either flash the outimage.bin or the "ME Region-after-cleaning.bin" (size: 0x4CA000, does it need padding?) which I found in the FITC Decomp folder after doing step 14 of the cleaning guide. What do you recommend? (I unlocked bios write protection already as per wdaniel's instructions)

      PS: I should add my current corrupted ME is v9.5.60.1952 and wdaniel's clean ME is v9.5.61.3012 and my BIOS is A22 and his A23

      EDIT1: Flashed the entire image: IT WORKS ! Big thanks to wdaniels and plutomaniac for the fantastic help :-)
      EDIT2: @wdaniels: I do have that double POST as well, but I seem to remember I had that also before my problems started. The DELL logo appears first for about 2-3 seconds, then black screen for about 7-8 seconds and then DELL logo again with Windows boot spinner underneath

      PS2: where is that BIOS setup variable physically stored?

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.16.2017

      Offset 0x75 from the start of spi.bin?

      I will start recovery of my tablet now.

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.16.2017

      Thanks for the dump, I will try it out later today. Concerning error 280, apparently it is an additional BIOS write protection and probably your best bet is to only write the ME region. To get rid of error 280 I found this: [PROBLEM] How to mod an Intel mainboard BIOS? (9)

    • jockyw2001 has written a new post "Yoga 2 Pro shutdowns every 30 minutes" 09.16.2017

      MEA 1.19.0_x ? :-)

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.15.2017

      Sorry for not formulating my questions clear enough.

      I try to reformulate the first question: do there exist BIOS-es which can reinitialize the ME DATA section, which includes the ME OEM data, or is that region provisioned by the OEM in factory and is under the sole supervision of the ME CODE section and BIOS has nothing to do with it?

      The second question: can stock BIOS updaters, e.g. 7130vPro_A23.exe, which update EC, system BIOS, ME, OROMs, etc. cause a relock of the FD access control fields?

      Something else is puzzling me: why does the Dell update engine not start when the ME file system is corrupted? When I execute a BIOS updater, e.g. 7130vPro_A23.exe, the system reboots straight into Windows, the update engine does not start.

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.15.2017

      Zitat von wdaniels im Beitrag #28
      I have successfully dumped the BIOS with the raspberry pi. I am currently patching the FD

      Excellent job! Would be nice if you can take a picture of your raspi and how you wired it with the bios chip. Prolly you have a similar setup as shown here. Did you add resistors and a capacitor as shown on the picture there?

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.15.2017

      Zitat von plutomaniac im Beitrag #25
      You cannot use the stock ME regions found inside the Dell HDR images as they have no OEM configuration. The whole point of the cleanup guide is to take an EXTR (configured) and clean it from any garbage. RGN don't have any configuration so they are useless in this case, thus someone else's dump is needed.

      Is there a possibility that some BIOS can initialize the ME OEM data region. I ask because some Dell 7130 users reported they could overcome similar problems after a CMOS reset followed by a BIOS upgrade?

      And can stock firmware updates again lock the FD?

      PS: I just read this. Is the HAP topic already discussed in one of the win-raid forums?

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.14.2017

      @wdaniels : looking forward to your dump. Soldering wires is less problematic than using the SOIC clip. I had a hard time until it finally recognized the chip ID.

      I searched the net for other Dell 7130 dumps, but it appears we are the first ones who are doing this (not counting the Dell Depot service techs)

      @plutomaniac: yup it's now clear to me

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.14.2017

      or can I do something with the ME Region, Stock image which I extracted from the Dell A22 BIOS Update? (See attached picture)|addpics|hck-7-0e16.jpg|/addpics|

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.14.2017

      Zitat von plutomaniac im Beitrag #21
      The dumped ME region is corrupt so it cannot be properly parsed by FITC. In such cases, I advise people to look online for someone else's dump from the same model, and use that ME region for cleaning instead.

      Thx! Then I must wait on the dump of my brother in arms wdaniels :) Hopefully his ME region dump will not choke FITC

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.14.2017

      OMG, step 8 of the cleaning guide fails. See the attached pictures. Perhaps it is related to the warning at the end of the ME Analyzer output: "Warning: File size exceeds firmware, unneeded padding!". Can you help? I have uploaded my spi.bin and me.bin here. Yes I know, not my last post in this thread ...|addpics|hck-5-29f9.jpg,hck-6-bc07.jpg|/addpics|

    • jockyw2001 has written a new post "FS Esprimo 5730 AMT upgrade - SOLVED !" 09.14.2017

      Zitat von fs-esprimo im Beitrag #15

      How can I change the descriptor so flash / ME area will not be locked so I don't have to use Test Point for next time ?


      With hexeditor patch the FD at offsets 062, 0x66 and 0x6a of full spi dump, see here and then flash the patched spi image

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.14.2017

      Success! I've unlocked the flash descriptor :-)

      After cutting off a small corner of the frame and bending the edge away, I could firmly put the SOIC clip on the bios chip and dump it. See the attached pictures. I then binary patched the FD at offsets 062, 0x66 and 0x6a, see here and flashed it.

      I have just made another full dump with fptw64 and will check how to clean it. I hope my next post will be my final one in this thread.|addpics|hck-3-1242.jpg,hck-4-11b8.jpg|/addpics|

    • jockyw2001 has written a new post "Dell Venue Pro 7130 tablet - ME file system corrupted" 09.14.2017

      Zitat von wdaniels im Beitrag #12
      I have started disassembling my 7130, and the winbond chip is indeed under the EMI shield that has the heatsink pipe going under it. It is relatively easy to unhook, initially I was afraid it was soldered down. The markings indicate it is a winbond W25Q128FV.


      How many hooks are there and what tool did you use to unhook it? Can the shield be remounted afterwards?
      Tomorrow I will try if I can ISP the bios chip. That is, if the downgrade to A13, reset CMOS and reflash A22 (or A23) fails.

      EDIT: would be cool if you can find the audio chip and test the pinstrap ! I will try to ISP the bios chip regardless whether or not the downgrade path works.

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