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  1. #11
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    Quote Originally Posted by betahash View Post
    I think, without confirm with syzygy, ISM is no way to work with Venus, nor could it be Venus-ed.
    It's not clear to me if ISM.IDX contains any shifted data that needs to be corrected or not. Judging by its extension IDX, I guess it should contain indices for searching purpose only and needs no correction.

    If you have an official Garmin China device, you certainly can choose to install the official map or the Venus (optionally with QSI and ISM) map. Just need to make sure the shift adding feature provided by the bin file is or is not activated respectively. For all other devices, Venus map (without QSI and ISM) is the only choice left for China NT map.

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  3. #12
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    So is there every going to be an English version of City Navigator NT 2011.11 ?

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    Quote Originally Posted by betahash View Post
    ander7724:

    the most remarkable advantage from Venus is the resultant performance. With official release the QSI (Quick Search Index) and ISM (precious & better cross-boarder/blocks plan) are expected, but GS QSI is only available in limited portion of Garmin Series hardware.

    I think, without confirm with syzygy, ISM is no way to work with Venus, nor could it be Venus-ed.

    mentioned bin file from hardware firmware, must exist with official map, and must be removed with Venus map.

    Quote Originally Posted by syzygy View Post
    As said before, only the firmware in Garmin China products can recognize these two subfiles. So even if your device is an official, say Garmin US, product you won't be able to take advantage of the features provided by these two subfiles, unless you can find a way to flash your device to Chinese firmware.

    It is a myth or misunderstanding that the file '006B082300.bin' can correct the shift/offset in an official Garmin China map. In reality, the map itself is never modified, let alone corrected. The coordinates of the map are not corrected neither when they are displayed on screen or recorded in SD card.

    What contained in the bin file is actually a piece of code to add shift/offset to the coordinates received from the GPS chipset before they are sent to the navigation software. The same algorithm used to shift the China map is used to shift the GPS coordinates. When the navigation software displays the shifted GPS location on the shifted map, it looks as if there was no shift to the user because the amount of shift is the same. An illusion after all. However, the recorded waypoints, routes and tracks will all have shifted coordinates which cannot be exchanged with Google Earth and other regular GPS products/software.

    Similar to the two subfiles above, only the firmware/software in some Garmin China and Garmin Taiwan products can recognize this bin file and activate the shift adding (not the mythical correcting) feature. That's why most non-Garmin-China/Taiwan devices have to use shift corrected maps like Venus maps.
    Thanks you guys for the explanations... Now i understand.

  5. #14
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    Quote Originally Posted by syzygy View Post
    Similar to the two subfiles above, only the firmware/software in some Garmin China and Garmin Taiwan products can recognize this bin file and activate the shift adding (not the mythical correcting) feature.
    This sounds strange to me, cause this bin file was provided by Garmin USA to customers who bought the China NT map from their website and faced the shifting issue. After this, USA/EU devices had also no shifting anymore. Please note that the file is original from Garmin. Maybe its not limited to China or Taiwan devices, maybe the bin file works only for a limited amount of Nuvi models

  6. #15
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    Quote Originally Posted by tom1807 View Post
    This sounds strange to me, cause this bin file was provided by Garmin USA to customers who bought the China NT map from their website and faced the shifting issue. After this, USA/EU devices had also no shifting anymore. Please note that the file is original from Garmin. Maybe its not limited to China or Taiwan devices, maybe the bin file works only for a limited amount of Nuvi models
    You could be right. My info was gathered some time ago and has not been updated. Maybe each .bin file is like a plugin that every Garmin device can recognize, read in, validate then execute if applicable. If not every device, at least on new models and old models with firmware upgrade. But I simply have no access to every Garmin device to verify this. I would encourage readers of this forum to try the official shifted China map on their Garmin devices with and without the bin file then compare the results.

  7. #16
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    Quote Originally Posted by shimsim View Post
    So is there every going to be an English version of City Navigator NT 2011.11 ?
    Unlikely in the near future. Note that even the 2011.11 CHS version has not been officially announced and released for download. What we have is copied out from a new Garmin China retail product.

  8. #17
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    Quote Originally Posted by syzygy View Post
    However, the recorded waypoints, routes and tracks will all have shifted coordinates which cannot be exchanged with Google Earth and other regular GPS products/software.
    Some good news and updates regarding the saved data. The new Oregon 450 and Oregon 550 sold by Garmin China can save both un-shifted and shifted coordinates now. A great improvement. Other new devices like 62S sold in China may have the same feature, but not confirmed yet.

    For Oregon 450:
    If no SD card is inserted, the coordinates saved in the internal memory will be shifted.
    If an SD card is inserted, the coordinates will be saved in SD card only but are un-shifted.

    For Oregon 550:
    If an SD card is inserted, shifted and un-shifted coordinates will be saved in the internal memory and SD card respectively at the same time.
    Not sure which verison will be saved when no SD is inserted. Most likely shifted.

  9. #18
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    Quote Originally Posted by syzygy View Post
    Note that even the 2011.11 CHS version has not been officially announced and released for download. What we have is copied out from a new Garmin China retail product.
    Speak of the devil, ...
    Garmin China just announced the availability of 2011.11 maps for registered users to download. See

    Code:
    Please Login or Register to see the links

  10. #19
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    Quote Originally Posted by syzygy View Post
    You could be right. My info was gathered some time ago and has not been updated. Maybe each .bin file is like a plugin that every Garmin device can recognize, read in, validate then execute if applicable. If not every device, at least on new models and old models with firmware upgrade. But I simply have no access to every Garmin device to verify this. I would encourage readers of this forum to try the official shifted China map on their Garmin devices with and without the bin file then compare the results.
    May i ask if there's a way to cross check whether the bin file is working if we're not in China?

    Quote Originally Posted by syzygy View Post
    You could be right. My info was gathered some time ago and has not been updated. Maybe each .bin file is like a plugin that every Garmin device can recognize, read in, validate then execute if applicable. If not every device, at least on new models and old models with firmware upgrade. But I simply have no access to every Garmin device to verify this. I would encourage readers of this forum to try the official shifted China map on their Garmin devices with and without the bin file then compare the results.
    Now that Tom1807 mentioned about the ISM.IDX is working with foreign GPS firmware, i can confirm that the 'Junction' will change to 'Garmin 168巷 intersection' on my 3790 SG/MY unit with the NT CHINA 2011.11 official map.
    Last edited by ander7724; 13th April 2011 at 10:52.

  11. #20
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    Quote Originally Posted by ander7724 View Post
    May i ask if there's a way to cross check whether the bin file is working if we're not in China?
    Guess not. The code in the bin file receives GPS coordinates from the GPS chipset directly and if the coordinates are not in China territory the code has no effect. So you have to be in China to test the code, unless you know how to modify the code to respond to coordinates in your area.

    Quote Originally Posted by ander7724 View Post
    Now that Tom1807 mentioned about the ISM.IDX is working with foreign GPS firmware, i can confirm that the 'Junction' will change to 'Garmin 168巷 intersection' on my 3790 SG/MY unit with the NT CHINA 2011.11 official map.
    I believe Tom mentioned about the bin file, not ISM.IDX. Also, I don't quite understand what do you mean by Junction/Intersection change. Could you post a before and after screen capture for comparison? Thanks.

 

 
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