Welcome guest, is this your first visit? Click the "Create Account" button now to join.
Page 1 of 2 12 LastLast
Results 1 to 10 of 12

Thread: Dead 3790

  1. #1
    Member + mallard2's Avatar
    Join Date
    Jul 2013
    Location
    United Kingdom
    Posts
    81
    Rep Power
    4

    Default Dead 3790

    Hi again
    I have had some very good info & excellent results using these forums & as I enjoy playing around with Sat Navs , I purchased a couple of 3790 units on the cheap described as not working !

    Unit 1 was completely Blank ,nothing at all appeared to be happening , until I noticed it was showing as connected in the (Win 7) taskbar ,checked all the files etc , and to my limited knowledge ,looked OK .
    Opened up the unit and both ribbon connectors from the screen were "unplugged" ,I reconnected them and presto , everything works fine .confusing as to how why this had happened , but hey ! good result ,more than covered the cost of purchasing both units .

    Unit 2 ....Blank ...nothing ....nada ....

    Not recognised by PC , tried leaving on charge 24 hrs ,no change
    tried all posted methods of entering pre boot mode ,SD card ,plugged into PC, not plugged in ...no change
    poised with cure ready to initiate if the unit showed up ........like watching grass grow !!..no change

    Is this what is meant by "bricked" ... or is there anything radical I could try , as the cost of it was recovered by unit 1 , not worried about trashing it ....

    Regards

  2.    Advertissements


  3. #2
    Garmin/GPS Systems GMod.

    Neil's Avatar
    Join Date
    Aug 2011
    Location
    Oz.
    Posts
    7,400
    Rep Power
    1434

    Default

    'Bricked or Partly-bricked' = 'Pregnant or Partly-pregnant'.

    In truth, most units aren't bricked in the literal sense although we all use the term when we mean that the device has a firmware or corrupt files problem. But really if it can be recovered it's not 'a brick'. Unfortunately, some units are irrecoverable and it's often due to a hardware problem. Sometimes it will show a very faint light on the screen if you take the unit into a very dark room and hold the on button down. 37x0 are a hardy lot and hard to 'fully brick'.

    Try connecting it with a usb lead to your PC to charge it rather than the car charger for an extended period. If no go ... so .... open it up and disconnect the battery for a while. You know the drill by now Ducky.
    '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. ].

  4. #3
    Member + mallard2's Avatar
    Join Date
    Jul 2013
    Location
    United Kingdom
    Posts
    81
    Rep Power
    4

    Default

    Thanks Neil
    I have tried 24 hrs with no battery in , 24 hrs charging on PC ,not a Glimmer at all so guess it must be hardware .............. I have a 3760 with a leaky screen so at worse I could salvage the screen to use there ..........

    regards

  5. #4
    Navigation software expert

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

    Default

    Plug unit to Pc and try to hold power button 10 sec if nuvi will turn on.
    Try hold 60 sec power button
    Unplug nuvi, try to hold 30 sec power button and then connect nuvi to Pc.
    Try to clean usb plug on nuvi.
    Try to change usb cable.
    Try to connect nuvi in car.
    If you wish, you can [Only registered and activated users can see links. ]

  6. #5
    Member + mallard2's Avatar
    Join Date
    Jul 2013
    Location
    United Kingdom
    Posts
    81
    Rep Power
    4

    Default

    Hi,
    thanks for the suggestion , have just tried various combinations inc the ones you mentioned but still nothing .
    What I have noticed is that the nuvi gets a slightly warm around the area of thr pc board ,so it must be doing something even if its only charging the battery

    Thanks

  7. #6
    Navigation software expert

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

    Default

    Go to some dark place and turn on nuvi and look if nuvi turn on light on display in corners.
    If you wish, you can [Only registered and activated users can see links. ]

  8. #7
    Member + mallard2's Avatar
    Join Date
    Jul 2013
    Location
    United Kingdom
    Posts
    81
    Rep Power
    4

    Default

    Pitch Black in the cupboard .........Not a Glimmer I'm afraid !

  9. #8
    GPSPower Helper

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

    Default

    Test Individual parts "display", "Battery" etc in your other Nuvi.
    Most probably you have a dead board.
    The difference between stupidity and genius is that genius has its limits.
    Albert Einstein.

  10. #9
    Garmin/GPS Systems GMod.

    Neil's Avatar
    Join Date
    Aug 2011
    Location
    Oz.
    Posts
    7,400
    Rep Power
    1434

    Default

    I think an autopsy is in order Dr Mallard! [are you an NCIS fan?]. Good advice again from dasilvarsa. Most likely it's hardware failure, i suspect there is some common component in 37xx hw which fails because every now and then one will defy all efforts of recovery and remain 'dead'. You could try flexing the board a little while powering on but even if the pcb is cr@cked or if it's a 'dry-joint' type of fault it's toast anyway imo. Boards aren't worth messing around with these days ....

    You and i must be living in parallel universes. I had a 3790 in bits in my parts drawer which i bought cheap a year or so back as 'For parts or not working' on eBay. I couldn't coax it back to life. Individually the screen and battery work with another 3790, but known-working battery and screen won't work with its board. Gone coon. Picked up another 3790 on eBay just recently described as the screen having 'bubbles at one end', this one:
    Code:
    Please Login or Register to see the links
    The traffic receiver and mount alone are each worth what i paid for it. Quick screen switch from the dead one and its all good.
    '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. ].

  11. #10
    Member + mallard2's Avatar
    Join Date
    Jul 2013
    Location
    United Kingdom
    Posts
    81
    Rep Power
    4

    Default

    Hi Neil
    Yes , I'm checking ebay quite often as well , to be honest ,I have a few now , different models . Picked up a 42lm & a 52lm quite cheap , but didn't like them because it's all a bit new to me & I didn't realise they were "essential series " not enough features .
    I am going to swap bits & pieces about and get the latest 39xx working .

    Look out for a few questions on the navigon 7200, just got a couple ,first thoughts .... yuk!

    Out of interest where in aus are you ??
    regards

 

 
Page 1 of 2 12 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.