IS 20 software bug
Printed From: myHanse.com
Category: Hints & Tips
Forum Name: 350
Forum Description: 350 Hints and Tips
URL: https://www.myhanse.com/forum_posts.asp?TID=2146
Printed Date: 27 March 2026 at 01:44
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com
Topic: IS 20 software bug
Posted By: RoyP
Subject: IS 20 software bug
Date Posted: 15 May 2008 at 21:50
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I have the standard Simrad IS 20 Multi-function display (speed, log, depth etc), wind and auto pilot. Also Garmin 4008 chart plotter.
Problems with the IS20 muliti-function:
1. The "Data Page Set Up" cannot be found on the set up menus. This normally allows the display to be customised.
2. The Cumulative Log (not Trip Log, which can be re-set) has a mind of its own. After one 14 NM short trip, it added only 2NM. Then it went backwards over night when not being used. The total log is now about half actual distance travelled.
However, on the Garmin chart plotter, some digital data from the other daisy-chained instruments can be displayed, and one is called "Odometer", which I believe means total distance travelled. This looks about right, but does not tally with any data on the Simrad instruments themselves.
3. On the "Log" page, a timer keeps running which can be reset to zero, but cannot be stopped.
When reported to Hanse UK, they quickly passed information on to Navico/Simrad, who contacted me. They confirmed the software was a very early issue and did indeed have a bug. I am returning the instruments and they promise to change the chips and send back by return.
Hanse UK service was good, and I only pass this on to warn others, as the default display does not show Log, and so some owners may not notice the erratic behaviour. My 350 is hull #104, and I assume other boats will have the same software. My software version is:
1.1.02
23.1.2008.
However, if it was a known bug, Navico/Simrad should perhaps have contacted owners - there cannot be too many of us with this software version.
I will write about my own initial impressions later - generally very impressed and happy and so far Hanse UK have been excellent on minor problems.
By the way, I see from another thread that some wind instruments do not show correct "True" wind. This does not seem to be a problem with this bug!
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Replies:
Posted By: RoyP
Date Posted: 17 June 2008 at 17:07
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Update on Simrad software bug. I posted off the 3 instruments (wind, auto pilot, speed/log etc) on Monday and they were received back by Thursday. I re-fitted them at the weekend, and it all seems to work fine. So far. Removing + re-fitting was easy. I somehow managed not to lose the plastic corners. So the replacement service was pretty good. Any one else noticed this or similar bugs? |
Posted By: Johan Hackman
Date Posted: 17 June 2008 at 22:25
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Hi Roy,
I would be interested in knowing what software version your instruments were updated to? I don't understand what you mean by that it's said in another thread that some wind intstruments don't show True Wind correctly. Could you please be more specific? Do you mean the debate on what True Wind really is, or is it something that has got to do with the instruments? Johan -------------  http://www.johanhackman.se" rel="nofollow - http://www.johanhackman.se |
Posted By: RoyP
Date Posted: 18 June 2008 at 09:19
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Hi I did not note the software issue number at the weekend, but I noticed the date below the version number was, I think, 28 03 2008. I will get the software issue next time I am at boat. Ref other Simrad wind bugs - there is a thread in the section on the 370 of this web site, headed "IS 20 Wind Instruments". I must learn how to paste a refernce to a thread or other page! Roy |
Posted By: Johan Hackman
Date Posted: 18 June 2008 at 14:46
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Alright, now I see what you mean. I haven't had that issue either.
There is a button that looks like a globe with a chain under it. Click that if you want to include a link in your message. Johan ------------- http://www.johanhackman.se" rel="nofollow - http://www.johanhackman.se |
Posted By: RoyP
Date Posted: 26 June 2008 at 12:21
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As promised, I checked the software issue, and the new software which we got 2 weeks ago is: S/N 0273 1.2.00 23.3.08 As mentioned, the bug which caused the log to stop working and go backwards has been cured (at least based on the last 2 weekends). However, the manual that came with the unit described the unit as a Graphic Multi Function Instrument. And it has a major part of the contents dedicated to how you re-format "Data Pages" that is change what is diaplyed at any time to your own preference. So, I preferred to have a display with Speed, depth and Trip, instead of having Trip nested down 3 levels of menu choices. The default diplay was speed/depth/water temperature. I actually always know the temperature of water off the South Coast of England - COLD! However, Simrad now say, the unit is in fact only a "Combi" unit This does not allow the display to be customised. It is not a great problem, as we have apparently only got what we should have got. But it is a pain that the unit came with bugs and with the wrong manual. New manual is in the post. Has anyone else noticed similar problems? As others have said, I have been surprised by the number of quality issues, and I will write them up some time. It is still a great boat to sail and I am always impressed just how much better she sails than our previous boats. ------------- Salsa, Hanse 350 #104 |
Posted By: Conundrum
Date Posted: 26 June 2008 at 13:21
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Do you have any problems with the screw covers falling off? ------------- Conundrum - Hanse 350 #144 |
Posted By: RoyP
Date Posted: 26 June 2008 at 13:37
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So far, just 2 weeks since re-ftting instruments, no plastic corners have fallen off ....yet.
------------- Salsa, Hanse 350 #104 |
Posted By: bjoris
Date Posted: 27 June 2008 at 18:38
Yes, half of mine are gone by now, hopeless design I think and with the 350 you easaly step on they in heavy conditions that it is not easy to be carefull... Have not had the time to call Simrad about it yet... My dealer fully agree, bad design ------------- H350#118 www.bjoris.blogspot.com |
Conundrum wrote:Posted By: Conundrum
Date Posted: 02 July 2008 at 14:41
I sent an email to Simrad 6 weeks ago about the corners. The replied back that a Mr **** from Navico UK would be in contact. Still waiting for that contact... I was looking at the IS20 Log yesterday and we also have the faulty 23/01/08 software, I never looked at the total distance recorded. Thats the next thing to check, but it looks like the unit will be going for an update. It is poor form they have not bothered to contact those affected. ------------- Conundrum - Hanse 350 #144 |
Posted By: copain
Date Posted: 03 July 2008 at 09:48
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Hi Conundrum,
I have sent several e-mails to Simrad and never had an answer.
I also now understand why the dealer does not provide any user training while these guys don't understand it themselfs for which you can hardly blame them with Simrad supplying so many different instruments which don't talk to each other and yet in Simrads own manuals they say.
"The user should be instructed in the basic operational functions such as ......."
Then there are about 14 dfferent instructions the user should be learned.
When we took delivery of the boat there was no instruction at all. I know I should have asked for it but since you go through a lot of effort to collect the boat I was not very keen of waiting another day or week or so for them to get somebody to do the training while the salesguy we did business with certainly had no idea about the working of the instruments.
Regards, Willem ------------- s/y Copain (Beneteau 281) from march 2008 Hanse 350 # 061 Visit my BLOG op http://www.wsv-haringvliet.nl/blog/maatje/ |
Posted By: nickfabbri
Date Posted: 03 July 2008 at 10:54
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We still can't work out if we have the faulty software or not.However I installed the AP24 control head on our boat and you can customise all the menus on the IS20's from within that. I have not been able to find this level of customisation from the Is20's on their own ------------- Nick71 Hanse 320 |
Posted By: Conundrum
Date Posted: 03 July 2008 at 13:36
We got a quick demo of log and autopliot from our dealer, who it on his second Hanse 371  . So he knows much more about the yachts than most. I would not expect any dealer to be an expert on the instruments.
I found a PDF http://cs.simradyachting.com/Index.aspx?PageID=92&CategoryBrowse=Brow&FilesGallery=Download,1237 - http://cs.simradyachting.com/Index.aspx?PageID=92&CategoryBrowse=Brow&FilesGallery=Download,1237 on upgrading the firmware. It can easly be done with the equipment in place, once you have the USB to Simnet adapter and correct software. ------------- Conundrum - Hanse 350 #144 |
Posted By: RoyP
Date Posted: 08 October 2008 at 20:55
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Ref the problem I reported of the Log (cumulative distance) randomly going backwards (ie distance reducing) when the IS 20 is switched off and then on. I reported that the firmware was changed by Simrad and it seemed to solve the problem. In fact it has not and I have had a number of exchanges by email.
I have now been told that the factory has finally identified that it is a real problem, and it is a software issue. Something to do with the fact that different Simrad instruments can generate the Log and they are not synchronising correctly.
They have not yet wriiten a fix, but I am promised it is in their programme.
overall I guess the Log is showing a distance run so far of 300 miles less than the actual distance.
Has anyone else seen this? ------------- Salsa, Hanse 350 #104 |
Posted By: Johan Hackman
Date Posted: 08 October 2008 at 21:14
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I have seen it too and have reported it to Simrad.
Johan ------------- http://www.johanhackman.se" rel="nofollow - http://www.johanhackman.se |
Posted By: slomo
Date Posted: 09 October 2008 at 19:37
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me too!
mex
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Posted By: Captain_i
Date Posted: 27 October 2008 at 19:31
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I have had the same Log problem (cumulative log loosing miles when switching off) with IS20, got one SW update, which did not work, and now a new instrument. After that I had only one chance to check if problem was fixed - and it looked that it was not. I had also the GPS antenna changed. That one works now. Currently sailing season is over for this year, so I need to wait for spring to see how things work then. My dealer has been supportive with this problem, I have not been in direct contact with Simrad. But I am interested to hear from others what is the final fix to this problem. |
Posted By: Johan Hackman
Date Posted: 27 October 2008 at 19:41
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I have got word that there is a software version coming up in the next few weeks that addresses the log issue along with a few other things. The version number will be 1.2.01.
I wonder if your Simrad contacts have the equipment to help you with the upgrade? Johan ------------- http://www.johanhackman.se" rel="nofollow - http://www.johanhackman.se |