Welcome guest, is this your first visit? Click the "Create Account" button now to join.
Page 32 of 40 FirstFirst ... 223031323334 ... LastLast
Results 311 to 320 of 397
  1. #311
    Garmin/GPS Systems GMod.

    Neil's Avatar
    Join Date
    Aug 2011
    Location
    Oz.
    Posts
    7,407
    Rep Power
    1435

    Default

    @kunix
    I've used it on a 3790 [virgin, never converted previously to 3490]. Functions as a 3490. Identifies as a 3790 on boot. GarminDevice.xml and inventory page show HWID as 1101 so i suppose WebUpdater etc for 34x0 updates is a nono. Logo jumps up and to the right on boot and then disappears when loading maps. Only did the conversion as few minutes ago. I'll take it for a real world road test later and let you know the sat accuracy.
    'Thanking Posts' are banned. To thank someone, and/or to see hidden links and content, use the [Only registered and activated users can see links. ] button below left of the helpful post then refresh your browser [F5 key]. 'Thanking Posts' are banned.
    Please don't spam. Posts serving no purpose other than to thank or to ask about hidden links are trashed or deleted, it's GPSPower's policy. Please don't spam.
    [Only registered and activated users can see links. ] should make their first post as a new Intro Thread in [Only registered and activated users can see links. ].

  2.    Advertissements


  3. #312
    Navigation software Moderator

    kunix's Avatar
    Join Date
    Sep 2011
    Location
    Belarus
    Posts
    1,041
    Rep Power
    601

    Default

    Quote Originally Posted by Neil View Post
    GarminDevice.xml and inventory page show HWID as 1101 so i suppose WebUpdater etc for 34x0 updates is a nono. Logo jumps up and to the right on boot and then disappears when loading maps. Only did the conversion as few minutes ago. I'll take it for a real world road test later and let you know the sat accuracy.
    You can update it with WebUpdater, but it would just install 37xx GCD which would just erase 34xx firmware. Nothing exceptional would happen.
    I don't know what causes logo disappearance. Some info about how 37xx logo works with 34xx firmware and bootloader would probably help me.

  4. #313
    Garmin/GPS Systems GMod.

    Neil's Avatar
    Join Date
    Aug 2011
    Location
    Oz.
    Posts
    7,407
    Rep Power
    1435

    Default

    Yes, that's what i meant. WU/GE/MD would just dl the 37xx fw and files.

    A bit more info: ASR doesn't work with either ASR 1 or ASR 2 files. I'll play a bit more with that.

    Sat accuracy seems the same as my other convert, varied 4 to 10 metres today in mostly overcast suburban running (no tall buildings) in half-hr test. This unit and my other 2 showed rock solid 3 m before as 3790s which i find to be unrealistic in any case [just artificially enhanced with hotfix?]. From full off, about 4 mins until 'ready to navigate'. From standby 60-70 m quickly backing off to 8/9 m between 30 sec to a minute. I'd suspect hotfix is not working on these converts because while navigating there seems to be no problem, at least with both my 37>34. No car navigator needs 3 m accuracy anyway, imo up to 15m is fine, and i doubt any 'non-pro' receivers truly achieve 3 m constantly in reality without sw and/or SBAS enhancement.

    I'll try a 34x0 logo flash if you want me to, but the logo's really not a problem.
    'Thanking Posts' are banned. To thank someone, and/or to see hidden links and content, use the [Only registered and activated users can see links. ] button below left of the helpful post then refresh your browser [F5 key]. 'Thanking Posts' are banned.
    Please don't spam. Posts serving no purpose other than to thank or to ask about hidden links are trashed or deleted, it's GPSPower's policy. Please don't spam.
    [Only registered and activated users can see links. ] should make their first post as a new Intro Thread in [Only registered and activated users can see links. ].

  5. #314
    Navigation software Moderator

    kunix's Avatar
    Join Date
    Sep 2011
    Location
    Belarus
    Posts
    1,041
    Rep Power
    601

    Default

    Ok, so it totally looks like bootloader has nothing to do with GPS accuracy.
    I've spent only about 1.5 day writing gfwpack.exe and I've got an interesting (and probably useful after some modification) piece of software, so I'm not disappointed.
    Last edited by kunix; 1st May 2013 at 19:14.

  6. #315
    Navigation software expert

    lolypop000's Avatar
    Join Date
    May 2010
    Location
    EU
    Posts
    2,925
    Rep Power
    849

    Default

    If we manage to somehow extract from 37xx GPS Fw and add it in 34xx Fw then maybe it will all work OK.
    If you wish, you can [Only registered and activated users can see links. ]

  7. #316
    Garmin/GPS Systems GMod.

    Neil's Avatar
    Join Date
    Aug 2011
    Location
    Oz.
    Posts
    7,407
    Rep Power
    1435

    Default

    @lolypop000
    As you proposed back in Post #15 and it's timely for it to be raised again after some other seemingly plausible hypotheses have been debunked in practice. Can you help with such a mod?

    Kunix's total rebuilding [it would be trite to call that a 'mod'] of the fw which i tested yesterday is mind-blowing to me. Sure it has a few rough edges which i'm sure he could smooth off quicker than i could make a coffee but it worked overall and seemingly achieved the objective, i.e. to establish if the 37 bootloader would improve accuracy as proposed by Angelozip. I couldn't see that it does during my brief test but have left the unit converted and will do a triple side-by-side with it, a virgin 3790 and another 3790>3490 conventionally converted. Maybe throw in my 3590 as 4th which is as close as i've got to an original 3490. I'll post the results of that soon.

    Kunix, are you prepared to invest a little more time to extract the 37x0 GPS fw and mod it into either the original 34x0 or your creation [or both]? I'm happy to test further, no doubt others will also volunteer.
    'Thanking Posts' are banned. To thank someone, and/or to see hidden links and content, use the [Only registered and activated users can see links. ] button below left of the helpful post then refresh your browser [F5 key]. 'Thanking Posts' are banned.
    Please don't spam. Posts serving no purpose other than to thank or to ask about hidden links are trashed or deleted, it's GPSPower's policy. Please don't spam.
    [Only registered and activated users can see links. ] should make their first post as a new Intro Thread in [Only registered and activated users can see links. ].

  8. #317
    Navigation software Moderator

    kunix's Avatar
    Join Date
    Sep 2011
    Location
    Belarus
    Posts
    1,041
    Rep Power
    601

    Default

    Quote Originally Posted by Neil View Post
    Kunix, are you prepared to invest a little more time to extract the 37x0 GPS fw and mod it into either the original 34x0 or your creation [or both]? I'm happy to test further, no doubt others will also volunteer.
    Probably, yes. But are you sure GPS firmware is contained in the unit firmware and not somewhere else?

  9. #318
    Garmin/GPS Systems GMod.

    Neil's Avatar
    Join Date
    Aug 2011
    Location
    Oz.
    Posts
    7,407
    Rep Power
    1435

    Default

    No, I'm not at all sure by my own enquiries. I'm only going by what lolypop000 has said.
    'Thanking Posts' are banned. To thank someone, and/or to see hidden links and content, use the [Only registered and activated users can see links. ] button below left of the helpful post then refresh your browser [F5 key]. 'Thanking Posts' are banned.
    Please don't spam. Posts serving no purpose other than to thank or to ask about hidden links are trashed or deleted, it's GPSPower's policy. Please don't spam.
    [Only registered and activated users can see links. ] should make their first post as a new Intro Thread in [Only registered and activated users can see links. ].

  10. #319
    Navigation software expert

    lolypop000's Avatar
    Join Date
    May 2010
    Location
    EU
    Posts
    2,925
    Rep Power
    849

    Default

    Maybe GPS FW is in some NVM region and it's only writen in FW, becouse when you convert from 37xx to 34xx GPS FW don't change.
    Already google all for GPS FW, read all post on Noeman but can't find answer where is GPS FW.
    Someone here on Noeman write about region 91 but don't know what is inside this region.

    Do we have UAT FW of nuvi 37xx or 34xx?
    Maybe there we can find answer.
    If you wish, you can [Only registered and activated users can see links. ]

  11. #320
    GPSPower Helper

    dasilvarsa's Avatar
    Join Date
    Feb 2011
    Location
    Global
    Posts
    1,160
    Rep Power
    351

    Default

    GPS Firmware could also be inside GPS Chip.

    Maybe upgradable by Nuvi
    The difference between stupidity and genius is that genius has its limits.
    Albert Einstein.

 

 
Page 32 of 40 FirstFirst ... 223031323334 ... LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
This website uses cookies
We use cookies to store session information to facilitate remembering your login information, to allow you to save website preferences, to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.