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rhombus
3 Posts |
 Posted - 23 juin 2009 : 15:01:14
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| My 765 did the updating GPS firmware complete, then was stuck on acquiring satellites for ever. Power cycled it, had a sat lock right away, drove a few min, location froze (lost sats), reset again. Worked for 10min then shut off never to turn on again. Reset/Computer/ETC does not work. |
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z.entropic
USA
194 Posts |
Posted - 23 juin 2009 : 15:04:36
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I wonder if we are dealing with a GPS systemwide problem...
http://www.flightglobal.com/articles/2009/05/21/326855/carriers-could-face-gps-software-glitch-next-month.html
quote:
DATE:21/05/09
SOURCE:Air Transport Intelligence news
Carriers could face GPS software glitch next month
By John Croft
A software bug resident in a wide range of multi-mode GPS receivers (MMR) built by Rockwell Collins could cause datalink and other problems during the chronological transition from 20 to 21 June, cautions the European Aviation Safety Agency.
In a safety information bulletin (SIB) published 20 May, the regulator "strongly" recommended that operators with the units, which fly on practically all Boeing and Airbus models as well the Bombardier CRJ series, develop mitigation plans to deal with the potential problems, which were brought to EASA's attention by Rockwell Collins.
EASA says the error "may cause the MMR to compute a date that is 512 weeks or approximately 19.5 years in the past" unless the unit is powered on during the transition between the days (at 0000h GMT) or if an onboard source such as a flight management system or flight deck clock is set up to provide time to the MMR instead.
While the anomaly will not affect "position, integrity and time of day provided by the MMR," says EASA, it could prohibit the use of air traffic control datalink functions, result in incorrect date information on flight deck clocks, and possibly cause loss of maintenance and condition monitoring system data, as well as other anomalies.
Rockwell Collins says through the course of GPS system development and product regressiont tesing "our engineers discovered a minor software anomaly that affects the way the GPS receiver handles the date after June 20, 2009".
Stressing the anomaly does not in any way compromise navigation precision or integrity, the company adds: "We have been working closely with our customers and regulatory agencies to rapidly resolve this issue with minimal impact to our customers."
--z.entropic |
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gpspassion
93402 Posts |
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daveo
USA
188 Posts |
Posted - 23 juin 2009 : 15:41:05
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| My Nuvi 680 worked fine for the rest of the trip. |
Nuvi 680 with MSNdirect -- Nuvi 350 & GTM 11
Nuvi 755t with MSN
Nuvi 1690 |
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gpspassion
93402 Posts |
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danham
USA
7339 Posts |
Posted - 23 juin 2009 : 15:50:38
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@ SergZak:
I find only the .bin version of the files you mention, and of course this is on my 760, not 765. I opted not to mess, but wonder if you have an opinion about whether this bug may affect 7x0s too?
-dan |
- Nüvi forum moderator -
Nüvi 760 in a '10 Jetta TDI Diesel SportWagen & zumo 660 on a BMW F800 ST
Guide to working with pre-programmed routes: >> details <<
Language Guide / US Topo / 350 & 680 / MacBook & Intel iMac with OS X & Win XP / BaseCamp / Cape Cod, MA
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z.entropic
USA
194 Posts |
Posted - 23 juin 2009 : 15:54:18
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quote:
Originally posted by gpspassion
@z.entropic - could you check with GPS chipset your 770 uses, some came with SiRFstarIII too.
Just checked--my nuvi 770 is SiRFstar III, S/W 4.60, GPS ver 3.00s, SiRFInstantFixII (C)2008
Still not locking to any satellites, but other than that, no other problems 
[edit] A moment ago, I took my GPSmap 60Cx, also based on the SiRFstarIII chip, outside--it locked onto 8 satellites in 20-30 seconds. So, it doesn't seem to be a general SiRFstarIII chip problem.
--z.entropic
P.S. Per your previous post, I fixed my e-mail address. |
Edited by - z.entropic on 23 juin 2009 16:27:08 |
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gpspassion
93402 Posts |
Posted - 23 juin 2009 : 15:56:22
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ok, so there might be something more thant the chipset at play, have you turned off your 770 and let it get a fix outdoors ?
@danham - Which chipset does your 760 have ? If it's the SiRFstarIII chipset then probably not based on what we know at this point, i.e. related to the MTK chipset. Updated - well zentropic has a SS3 based 770 so, hum...
I upgraded my MTK based Colorado with WebUpdater and it's still using the v2.80m GPS firmware and it's getting a fix ok. |
Discounts and Assistance/Réductions et Assistance (Club GpsPasSion) / Où commencer? |
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FXDWG
Germany
19 Posts |
Posted - 23 juin 2009 : 16:01:54
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| It did the same thing to both of my 765T's this morning. Only way to get them to turn back on is to take the bake off and unplug the battery for a few seconds. But when I turned it on again after a few mins it went into the updating firmware again and shut down. I have placed a trouble ticket with them and also tried to call them. They are getting a lot of calls and the wait time was over 30mins!! |
Zumo 550 - Nuvi 760 - Nuvi 775 x2 |
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MickePro
Sweden
18 Posts |
Posted - 23 juin 2009 : 16:02:17
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Also my 765T died this morning. Have filed a report to Garmin.
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/Micke... |
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othersteve
3 Posts |
Posted - 23 juin 2009 : 16:07:17
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Hey guys,
My chipset in my 755T received last week reads:
3.40 nuvi 755 V8 4GB P1 S3 330MHz.
I have updated but have yet to experience the issue.
Is this a SiRF chipset? I'm trying to dig up more possible correlations to make more sense of this situation.
Steve |
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gpspassion
93402 Posts |
Posted - 23 juin 2009 : 16:21:04
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quote:
Originally posted by FXDWG
It did the same thing to both of my 765T's this morning. Only way to get them to turn back on is to take the bake off and unplug the battery for a few seconds. But when I turned it on again after a few mins it went into the updating firmware again and shut down. I have placed a trouble ticket with them and also tried to call them. They are getting a lot of calls and the wait time was over 30mins!!
It seems yours haven't gone completely bad. Try SergZak's trick to see if you can stop the update process and get them to stay on : quote:
x:/Garmin/RemoteSW/006B073300.GCD
x:/Garmin/RemoteSW/006B073300.bin
Rename the two to something the nuvi won't be looking for such as:
006B073300.GCD.disabled
006B073300.bin.disabled
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Discounts and Assistance/Réductions et Assistance (Club GpsPasSion) / Où commencer? |
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synomenon
621 Posts |
Posted - 23 juin 2009 : 16:22:26
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| I'm on hold right now on the phone. It says that there's an "unusually high call volume" and that the wait time is at least 30 minutes. If the replacement is going to take more than a week to receive, do you think they'd be able to send me a different model? I really need a working GPS unit for my trip this coming weekend. |
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danham
USA
7339 Posts |
Posted - 23 juin 2009 : 16:26:28
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Mine reports SiRFInstantFixII and GPS SW version 3.00s
-dan |
- Nüvi forum moderator -
Nüvi 760 in a '10 Jetta TDI Diesel SportWagen & zumo 660 on a BMW F800 ST
Guide to working with pre-programmed routes: >> details <<
Language Guide / US Topo / 350 & 680 / MacBook & Intel iMac with OS X & Win XP / BaseCamp / Cape Cod, MA
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Kflint
USA
61 Posts |
Posted - 23 juin 2009 : 16:28:33
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I'm having a similar problem with a 2 month old 755t. It stopped locking on to satellite signals last night. This morning it won't turn on, docked, undocked or hooked to a computer. Very weird. I'm on hold with Garmin now. The phone message is saying that, due to heavy call volumes, the wait is more than 30 minutes. 
KJF |
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[ALERT] nuvi 755/765 Died Today - v3.60 SW Fix
