Clone VU+ Duo +UPDF-

Discussion in 'VuPlus Duo Hardware troubles and Repair support.' started by JmanNZ, Aug 2, 2018.

  1. JmanNZ

    JmanNZ New Member

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    Hi
    I have a clone VU+ Duo with a VU J X 1 installed.
    The issue is Stuck on RED Led with starting on the LCD.
    With a serial cable and adapter connected I get a +UPDF- on the terminal screen without the adapter i get no serial output at all.

    Any help would be most welcome

    Regards
    Jman
     
  2. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Hmm do you see the led on the VuJ chip board shining normally, or weak.
    And it may help if you can give me a picture how you have connected the VuJ board.
     
  3. JmanNZ

    JmanNZ New Member

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    LED looks normal
    Installed as per pic

    Thanks for the help
    Regards
    Jman
     

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  4. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Yes, it looks good, thanks for showing the picture.
    As for the missing UPDS, is normal, because it's other software into the chip which give no longer this output on a terminal.
    The UPDF output is from the other chip, which is placed on the print side.
    But also because the serial part to the VuJ chip has no jumpers, and thus you can not get a response from it.
    Its further not important to jumper it, it must work without, it's only usable for upgrading this new chip.

    Of course, it's also possible that you have get a defective board, although they are tested, it could still become defective due the transport.

    I think, check the 3v on the scl/sda pins, do this without the VuJ board connected.
    When present, then it's not unlikely that you have get a defective VuJ board but to be sure just flash the box with the latest software which could be from the japhar site, or just download/flash the box with the latest openpli for the vu+duo boxes.

    One Question: did you also had this issue with your older (ferrari) chip board.
     
  5. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Just for the record, if you already had this issue before working with the VuJ chip, then it could also be due the famous cap which needs to be replaced for a new one.

    As for the cap replacement, normally it's a 220uF cap, you may also use a higher cap as for example a 330uF or 480uF and better is to keep the cap voltage between the 10v till 50v.

    Place the cap in the correct position, it has a plus/minus side.
    View attachment 1180
     
  6. JmanNZ

    JmanNZ New Member

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    Hi
    I have replaced the famous cap but will do it agian just in case.
    How do i flash the software as it will not see the USB i tried via the serial cable but also no go.
    I get no serial output with the little seial adapter pcb connected.

    Thanks
    Jman
     
  7. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    If you get no terminal output on the regulair way, without the adapter between the serial cable, then it could be some other cause.
    Often it's due a defective serial chip, one side of the serial chip fails, or there is no data onto the nand flash chip, or the nand chip is defective or missing the 3.3v, or worsen due a issue with the cpu.

    Flashing the box or the regulair way, thus by usb should normally work.
    If that fails, then the only option is to try the jtag method.
    In any case, if the bootloader or data on the nand flash chip is defective, or missing, then you could not flash the box on the normal way, but only fix it trough the jtag method.
    If it succeeded depends on the nand flash chip, if it has not to much bad sectors.
     
  8. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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  9. JmanNZ

    JmanNZ New Member

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    Hi
    Cap replaced again. Same issue.
    I will have to order a Cypress as i dont have one of those. I do have a clone Salee Logic analyzer that has the same Cypress chip (Maybe I can use that any ideas))

    Regards
    Jman
     
  10. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    No sorry, I have no idea if your saleae device can be used for this task, and also doubtful if it will works with the BroadbandStudio software.

    But these FX2LP CY7C68013A boards are everywhere for sale as on Ebay, and Aliexpress you find them for cheap.
    CY7C68013A EZ-USB FX2LP.jpg
     
  11. JmanNZ

    JmanNZ New Member

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    Awesome thanks Johnny. I did not want to wait 3 weeks for the Cypress board to arrive from China so I opened my Saleae (clone) removed the eeprom connected gnd, sda and sclk to the pads used by eeprom. I dont have an XP machine so i used VMWare Player and crreated a XP Virtual machine. Installed the software / drivers as per the PDF. And Sucess reflashed the Nand. The VU+ Duo booted and all is working. Thanks for the help
    I refitted the eeprom to the Saleae and now i have my Saleae back in action.
    What image do you recommend for the Vu+ Duo mine is still using the orginal Blackhole it shipped with.

    Pic of Saleae with eeprom removed and wires connected attached.


    Many Thanks
    Jman
     

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  12. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Clever done, with the Saleae board, good job.
    As for the software, with this VuJ chip you can use all the original and clone software written for the Vu+ Duo.
    So also the Vu+ Duo software from the japhar site.
    I use mostly OpenAtv or Openpli for all my boxes, but Blackhole has also his charm.
     
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  13. toysoft

    toysoft Well-Known Member Staff Member

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    Well done ! I am happy the issue is solved and now your VU+ Duo is even more powerful, it can use all original images ;o)

    TS

     
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