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  1. 14th February 2013, 12:34 AM #1
    lolypop000
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    Navigation software expert About 37xx converted to 34xx satellites reception accuracy
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    @Neil

    Can you send me GPS folder from your original nuvi 3790 (never converted) and from 37xx -->34xx nuvi?
    Maybe i found difference or FW version.
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  2. 14th February 2013, 01:28 AM #2
    Neil
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    @Loly
    OK, no problem, i'll PM you shortly.
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  3. 14th February 2013, 02:02 AM #3
    Kanopus
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    My 37 converted to 34, from a file Logs\bin\*.bin

    PCB V7 4GB O35 DA TC GM
    GPS MT3328 GPS
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  4. 14th February 2013, 03:44 PM #4
    catymag
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    Quote Originally Posted by Kanopus View Post
    My 37 converted to 34, from a file Logs\bin\*.bin

    PCB V7 4GB O35 DA TC GM
    GPS MT3328 GPS
    mine:
    PCB V8 8GB O35 DA TC GM
    GPS MT3328 GPS
    l9ebnsm
    You have to navigate to get to the good.

    Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / Nuvi 66 / Oregon 600
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  5. 14th February 2013, 04:34 PM #5
    Alviora
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    in 37xx - mediatek mt3328 (1023-BVDL CQJKR2 revision is different, depending on the revision of the motherboard psb).
    in 34xx - NL5500L 1CM00X3 with integrated Bluetooth ( NaviLink™ 6.0 Solution: NL5500)
    you want photo psb?
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  6. 14th February 2013, 05:01 PM #6
    catymag
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    Quote Originally Posted by Alviora View Post
    you want photo psb?
    If you have yes, thanks
    l9ebnsm
    You have to navigate to get to the good.

    Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / Nuvi 66 / Oregon 600
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  7. 14th February 2013, 09:05 PM #7
    rfb
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    Quote Originally Posted by Alviora View Post
    in 37xx - mediatek mt3328 (1023-BVDL CQJKR2 revision is different, depending on the revision of the motherboard psb).
    in 34xx - NL5500L 1CM00X3 with integrated Bluetooth ( NaviLink™ 6.0 Solution: NL5500)
    you want photo psb?

    Hi,

    So If I understand, the problem with the sensibility in the 37XX transformed in 34XX is the wrong Chipset Firmware?
    Like the mediatek mt3328 working with the chipset firmware NL5500L 1CM00X3 ?

    Looks me very promisse this.

    But the question that can not wait.... Is there a chance to install the correct chipset firmware on 37XX transformed in 34XX ?

    EDIT:

    I don't know if this helps:

    Code:
    Please Login or Register to see the links
    and

    Code:
    Please Login or Register to see the links
    []'s
    Last edited by Neil; 14th February 2013 at 10:19 PM. Reason: Coded links.
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  8. 14th February 2013, 10:27 PM #8
    Neil
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    Quote Originally Posted by rfb View Post

    Hi,

    So If I understand, the problem with the sensibility in the 37XX transformed in 34XX is the wrong Chipset Firmware?
    Like the mediatek mt3328 working with the chipset firmware NL5500L 1CM00X3 ?

    Looks me very promisse this.

    But the question that can not wait.... Is there a chance to install the correct chipset firmware on 37XX transformed in 34XX ?
    This is what I was hoping for back in [Only registered and activated users can see links. ] and earlier. My accuracy is acceptable, but hybrid fw consisting of 34xx unit software and 37xx gps fw could maybe solve the problem of users with 15-20m accuracy?
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  9. 15th February 2013, 01:02 AM #9
    rfb
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    Quote Originally Posted by Neil View Post
    This is what I was hoping for back in [Only registered and activated users can see links. ] and earlier. My accuracy is acceptable, but hybrid fw consisting of 34xx unit software and 37xx gps fw could maybe solve the problem of users with 15-20m accuracy?
    Hello,

    Yes, I think so.
    But is there a way to extract just the interest part of the original 37XX firmware? From the GCD or RGN file?

    []'s
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  10. 15th February 2013, 03:20 AM #10
    Giomen
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    Navigation software expert About 37xx converted to 34xx satellites reception accuracy
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    Quote Originally Posted by Alviora View Post
    in 37xx - mediatek mt3328 (1023-BVDL CQJKR2 revision is different, depending on the revision of the motherboard psb).
    in 34xx - NL5500L 1CM00X3 with integrated Bluetooth ( NaviLink™ 6.0 Solution: NL5500)
    I saw a both modification of original 34xx, 35xx with different version of GPS for Texas Instrument and MTK. In Nuvi37xx it is too but I do not remember how many. Also the first sign for MTK chipset is next files in filesystem:

    .System\GPS\ARC.BIN
    .System\GPS\BEE.BIN
    .System\GPS\mt.nvm

    In SW source code there are also references to both module: NL5500 and MT3328 (search for unicode string us usually)...

    For interesting we may have the next PCB modifications:

    V X
    8 G B - 1 G B - 2 G B - 4 G B
    O 3 6 - O 3 5 - O 3 7 - O ?
    M M - M A - M ? - only old version of SW
    D A - D S - D C - D W - D W H - D W N - D I - D ?
    T M - T C - T W - T Y C - T ?
    P P - P A - P ? - only old version of SW
    H P
    G M - G T - G T L - G T ?

    Last Nuvi 2xx5 is much steeper than the 3ххх - it have 16 GB on board
    Last edited by Giomen; 15th February 2013 at 03:34 AM.
    Garmin, how much is 30 pieces of silver for Judas today? Were they worthy for crucifix of GPSPower?
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