Using JTAG to read/write the flash MMI3G - Page 3
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  1. #31
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    There is a 100% working solution by jtag. You can repair any 3g/3g+/rns-850 even if complet dead (no hardware fault)

    First of all you need this jtag tool;

    diygadget.com/tiao-usb-multi-protocol-adapter-jtag-spi-i2c-serial.html

    Jtag pinout picture;
    mmi3g_jtag_connection.JPG


    So if anyone need full information and all tools, can contact me pm (full pack with everything for jtag coast arround 1k eu)
    Last edited by gsmflasch; 10th February, 2017 at 12:14 PM. Reason: add price

  2. The Following 12 Users Say Thank You to gsmflasch For This Useful Post:

    allcarsdiag (31st May, 2020), baldzius (9th July, 2017), brodaty (14th July, 2017), darka7 (11th March, 2022), dec123ua (26th June, 2018), elektro128 (15th January, 2017), hbalazs (17th July, 2017), Hoborg (4th March, 2018), papandos (25th January, 2017), ptikkala (19th January, 2017), Tschako (9th February, 2017), wcysj08 (6th August, 2018)

  3. #32
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    you got pm

  4. #33
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    How did you read v850 70f3366. I have Orange 5 clone and it should do it but no go yet...

  5. #34
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    JTAG connection
    Last edited by congobg; 4th August, 2020 at 07:56 AM.

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    papandos (25th January, 2017), ptikkala (19th January, 2017)

  7. #35
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    Answer was erased! See next post!
    Last edited by Tschako; 10th February, 2017 at 01:06 AM. Reason: erased!

  8. #36
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    Quote Originally Posted by congobg View Post
    Getting there Using the parameter from above the MMI went in bolo mode after the emergency flash finished but i had an error in the metainfo somewhere ... will try again tomorrow.
    If i got you right, i will give the V850 power on pin 9 and 11 and should not power the MMI right?
    Hi, I think your error depends the drive ID of the metainfo2.txt. The routine for recovering the MuIOC allways search for it on the device "CD".
    If you start it with the same FW version on CD it will run succesfull...
    Otherwise you can direct use a patched "update.txt" file in /mnt/efs-persist/SWDL/

    Good luck!
    Tschako

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    Thanks Tschako I will try that next time.
    Meanwhile the unit is working, flashed the v850 the hard way, hope that I won't need to do that anymore


    Sent from my iPhone using Tapatalk

  10. #38
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    Haha, yes!
    A good way todo some update & flash activities is the usage of the update routine by placing a prepared "update.txt" file in the SWDL folder.
    It will batched after reboot like an update session. Especially, in case the panel isn?t available a nice way.

  11. #39
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    someone have dumps or data for bmw cic v850? share or for sell, pm...

  12. #40
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    Hello
    I have MMI 3G who have upgraded by a guy with a firmware of MMI3G+

    So the TTL could not operate (problem FPGA...)

    I need help on this procedure with JTAG (tools ...soft ..process)

    Best regard

  13. #41
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    with this tool you can read write %100 ;

    http://www.diygadget.com/tiao-usb-mu...2c-serial.html

  14. #42
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    Quote Originally Posted by gsmflasch View Post
    with this tool you can read write %100 ;

    http://www.diygadget.com/tiao-usb-mu...2c-serial.html
    out if subject but i'd like to ask if it is possible with this tool to read renesas r4f70580sv?
    Thank you very much!
    Professional BMW immo solutions

    Macedonia is one and GREEK!!!

  15. #43
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    Ok for the tools....
    But for the soft and the command to pass into the soft...?
    I could pay a little for this infos but it is only for one MMI...

  16. #44
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    If you want to repair just 1 unit the price is high for all, but if you want to repair over 4-5 unit then you can get the money back what you will spend for it.

  17. #45
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    Hi everybody I am trying to read the flash with segger jlink and topjtag programmer according the schematic from the first page but have some issues. The readings are not correct, there are allot of ff comparing with original firmware. For example if I try to read the fpga and make more readings, the readings differ, some times it reads more data and some times read less data followed by ff. Can anyone knows how to solve this problem? What frequency to use on jtag? Do I need to get tiao usb multi protocol adapter?

 

 
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