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swinman Occasional Visitor

Joined: Jan 02, 2007 Posts: 13
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Posted: Sun Dec 04, 2016 11:04 am Post subject: Incorrect speed limits displayed in truck mode on garmin 770 |
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Hi. Has anybody had a problem with truck speed limits & incorrect ETAs after updating the maps to 2017.20. On A roads its stuck on 20MPH & on Dual Carriageways & motorways its stuck on 40MPH. I have had this sat nav only a week after returning the first one back to Halfords for an exchange for the same reason. I have emailed & spoke to garmin technical support about this matter, but everything they have said to do, Ie a hard reset, change the profile of the truck I have done, but still I am having the same problem. The speed limits in car mode are all ok. I have sent them a log of the route that I programmed in to the sat nav, but no reply as yet. I am running windows 10 home on both my laptop & my main Computer. Thanks. |
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sussamb Pocket GPS Verifier

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Joined: Mar 18, 2011 Posts: 4462 Location: West Sussex
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Posted: Sun Dec 04, 2016 11:21 am Post subject: |
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I don't have your model but it sounds like an incorrect profile, so I'd look closely at that first. _________________ Where there's a will ... there's a way. |
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swinman Occasional Visitor

Joined: Jan 02, 2007 Posts: 13
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Posted: Sun Dec 04, 2016 5:59 pm Post subject: |
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sussamb wrote: | I don't have your model but it sounds like an incorrect profile, so I'd look closely at that first. |
Hi. Thanks for your reply.. re profile, do you mean the truck profile, if so I have done one for a 44ton artic & 18 ton rigid, no change at all.. garmin tech support tried to say that was the problem, until I told them that I was running my old dezl 560 along side the dezl 770 with 2017.20 maps with the same profile. with the 560 giving correct speed & give or take 5mins on my ETA. |
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M8TJT The Other Tired Old Man


Joined: Apr 04, 2006 Posts: 10118 Location: Bexhill, South Sussex, UK
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Posted: Sun Dec 04, 2016 7:36 pm Post subject: |
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Then what did they say? |
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swinman Occasional Visitor

Joined: Jan 02, 2007 Posts: 13
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Posted: Sun Dec 04, 2016 8:52 pm Post subject: |
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M8TJT wrote: | Then what did they say? | .
They just told me to take screen shots on route, to show the speed limit shown & send the a log of the route via garmin express, so there technical team can look at the problem. but at the moment I am still waiting a reply.... |
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