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  1. #381
    Ballebar
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    Default TMC unlock calculations

    If you have a unit like the nüvi 3790 or similar you can look in "[GPS drive]:\.System\TrafficProvider.xml".

    Here's an example with extract of 2 entries from TMC providers in France:
    Code:
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    V-Trafic (FR):
    FID=cc*256+sid=15*256+62=3902 REMARK: It's not always factor 256 for all FID calculations
    PID=ltn1=30
    RgnID=ltn2=32
    VenID, use 1 for insert and 0 for remove

    Via-Michelin (FR):
    FID=cc*256+sid=15*256+58=3898 REMARK: It's not always factor 256 for all FID calculations
    PID=ltn1=29
    RgnID=ltn2=32
    VenID, use 1 for insert and 0 for remove


    Looking here in post #1 you can see the 2 code sets for France
    Code:
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    It was a year or two since I've tried this calculations. I don't have the complete calculations for all providers but this can be used as a starter for further investigations. The hardest to calculate would be the FID if you don't have a real 25-character unlock key to investigate with [Only registered and activated users can see links. ].


    EDIT: Here's some more examples of my own previous investigations.

    Sample calculation with Radio SI/TrafficNav (SI)

    :Anim3: State Type of license Ltn 1 Ltn 2 SID
    Radio SI/TrafficNav (SI) 9 1001 33 33 1
    9=SL 1001 = lifetime
    Formula Value
    FID / MapID State*2^11+2^8+SID =9*2048+256+1 =18689 :Animated77:
    PID =Ltn 1 =33
    RgnID =Ltn 2 same as Ltn 1 =33
    VenID (1=insert) (0=remove) 1

    Sample calculation for Destia Traffic TMC (PL)
    :111anim: State Type of license Ltn 1 Ltn 2 SID
    Destia Traffic TMC (PL) 3 1001 5 5 2
    3=PL 1001 = lifetime
    Formula Value
    FID / MapID State*2^11+2^11+2^9+2^8+SID =3*2048+2048+512+2 =8962 :Animated98:
    PID =Ltn 1 =5
    RgnID =Ltn 2 same as Ltn 1 =5
    VenID (1=insert) (0=remove) 1

    Maybe someone could find the pattern for generic calculation of FID values for TMC?

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  3. #382
    Navigation software expert Using TMC in Garmin nuvi for free
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    lolypop000's Avatar
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    I cant figure out formula:State*2^11+2^8+SID

    how do you get from 2^11+2 result 2048?

    how do you get from 2^8 result 256?

    How do you know that is factor 2048 and not something else like 256?
    Last edited by lolypop000; 25th February 2012 at 06:56 PM.

  4. #383
    Ballebar
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    @lolypop000

    I don't know the formula for FID in TMC calculations. Just some fragments with PID, RgnID & VenID and where FID is adopted to fit the wanted result. I'm using binary factors (2^?) as fillers so the pattern would be easier to see in possible operations with XOR, OR, AND, BIT-SHIFTs etc.
    Code:
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    My time is limited to investigate all possible ideas that floats around. I tried to explain the initial seed for the TMC calculations and there has been other explanations earlier in forums that crashed and lost their stuff (eg. **** & erased posts in PPC W**ez).
    Quote Originally Posted by Ballebar View Post
    I don't have the complete calculations for all providers but this can be used as a starter for further investigations. The hardest to calculate would be the FID if you don't have a real 25-character unlock key to investigate with [Only registered and activated users can see links. ].

    Maybe someone could find the pattern for generic calculation of FID values for TMC?
    Anyone who is interested and like to do further investigations are welcomed to dig deeper into this problem : anim18):

  5. #384
    Navigation software expert Using TMC in Garmin nuvi for free
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    lolypop000's Avatar
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    Thank you for your answer.
    I will try to investigate

  6. #385
    Ballebar
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    @lolypop000

    Connect your GPS with the GTM TMC device and look in diagnostic pages for further details.

    Example:
    96815d1330264869 using tmc garmin nuvi free gtm fm status
    Attached Images Attached Images

  7. #386
    Navigation software expert Using TMC in Garmin nuvi for free
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    I see something interesting from your picture.

    Traffic_nav(SI) 1001 9/e4/1/33
    hex e4 is decimal 228

    <country name="Slovenia" cc="9" ecc="228" fmTuningGrid="World">
    <boundary desc="slovenia">

  8. #387
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    some will start with

    North America 7
    Brazil 7
    Australia 4
    Bulgaria 7
    Ireland 5
    Sweden 2
    Belgium 3
    Norway 2
    Sweden 2
    Slovenia 4

  9. #388
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    Hello Everyone,
    I have a Garmin 660 in lower 48 in US. When I originally bought this unit,it came with 3 months free traffic. I have been trying to figure out how to make this work again ever since without sub. I have read and read and read some more,but no luck. On this unit,I cannot find those settings I need. On the initial screen , there is only the wrench and the speaker. When you click on the wrench,there is not the commands listed in this post to get where I need to be. I have downloaded the generator.Is there anyone here that might have a 660 that has done this willing to give me a few pointers? I am really new to this. I have loaded 2012 unlocked map into it with success. Thank you very much.

  10. #389
    Navigation software expert Using TMC in Garmin nuvi for free
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    You must be in car and coneccted on power then you will see icon for traffic in settings.

  11. #390
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    Thank you very much lolypop000. Ok I have done that and of course you were right. It shows TTN (US,CAN):Expired. When I click (ADD), it gives me the receiver I.D. then when I click on next, It wants the 25 digit code to activate. Ok now that I am this far,I "think" what I need to know is how to generate the activation code. I think i would use JM-KG 1.5+ 5 digit+checksum fix. Is this a correct assumption? Also is there a step-by-step? I just don't remember after reading so many pages. I think I forgot most of what I read!! LOL If you get a chance, would you mind letting me know what you think? Thank you so very much....spoc

    EDIT: I see this on the first page of this thread....Start keygen, insert TMC ID into field Enter your Unit ID here then go to Select Map Product and choose Custom Mapset. In Custom Mapset window check Enable additional fields and fill all 4 values for FID, PID, RgnID, VenID. What I am confused about is it says "insert TMC ID into field" then "Enter your Unit ID here. I only see one place to enter either TMC ID or UNIT ID. I understand the rest of it I think except which do I choose,Garmin Mobile XT or PC? Also there are 2 spots to click generate? Would you click top one or bottom one? I believe the other info is FID.. 28992 PID..0 RgnID..0 VenID..1. that is what is on first page for TTN US & CAN. I am sorry for all the questions,but I just want to do it right. Thank you very much....spoc

 

 

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