Thanks Bowhunt, I will look into it.

I sent my chip to lowrance and should get it back this week. He promised he wouldnt keep it for two months like they do units that are sent back. As soon as i get the 4.0 chip i will be more than happy to help anyone else out if they need it. I might even be able to burn it onto a disk and mail it to others.

Sweet that would Great

HTC, your a true gentleman. Thank you for the offer is assist. I loaded 3.5 and got rid of the 4.1 and would really like to see how the 4.0 works for you when you get it. Please advise when it gets to you and you have a chance to load and test.
Tom

Doesn't Lowrance have a clue that 4.1 is having so much trouble when I spoke with them they haven't heard any issues

Bowhunt, That sounds like a stock answer for them. I doubt they want to spend any more money to fix the update with the gen 2 out. I am sure they are aware of it as many reps have stated that 4.0 is the one they use. I understand the economics of it if that is their stand but once the 4.1 came out that should have obligated them to make that version work. I loaded the 3.5 and my troubles went away on my HDS 10.
Tom

Sorry guys, I haven't looked at this thread in awhile. I do not have the 4.0 if I did I would certainly share. Do what I did, just upgraded to HDS 10 Gen 2. Only 1 short trip out with it so far.

Well the system is on the way back it was transducer thing is they don't make transducers for Lss1 any more so there sending me a lss2 transducer hopefully it all works together

FWIW I installed 4.1 in my HDS7 and it is working great. Fished several days at the coast and once in Texoma. Shows fish and structure very nicely. Alls well as far as I can tell.

Guys, 4.1 software is lot better then previous 4.0 software codes. At the Skeeter and the Legend tournaments..I had guys come up to me and say they load the latest code 4.1 and they couldn't get to set right... only thing I changed is put the unit in shallow water mode then change color line to 72-74, noise reduction and surface clutter on low and ping speed 18-19. and put the unit in auto sensitivity and set it at zero. then bamm.. these guys where happy...

FYI, some of these guys, all I had to change is there auto sensitivity.. they had there bias turn way up or way down.. I told them leave it at zero..if anything.. +1 or -1.

Don't upgrade to 4_1 just upgraded my HDS 10 and I no longer have any of the 4_0 upgrades. Calling Lowrance tomorrow cannot find 4_0 D/L anywhere on the net to go back so I guess I have to go through the same mess as everone else. Very disapointed ! ! !

Does anyone have a 4_0 upgrade they could email me. PM me and I'll give you my email. Trying to go back to 4.0 after a bad 4.1 install. Please help if you can. Thanks

What features are you missing? You have to reset the fishing mode, transducer type and all the settings. Maybe try to download & re-install the 4.1 again?

Good news after several repeat attempts to install 4.1 and a long conversation with Lowrance tech support I finally tripped over the right answer for a fix. I had originally had tried to do the upgrade in the comfort of my living room on alt power supply and apparently the Main unit must be hooked up to the structure scan unit LSS-1 or LSS-2 in order for the update to take. So anyone having problems with their updates your unit must be hooked up to the structure scan unit or you will experience problems with the update. Issue is now resolved. Thanks for inputs although I think 4.0 was fairly solid I may like 4.1 even better. Going out for a on the water test this weekend. Any reports for some good bass fishing to test my new upgrade on ?

Doh! I upgraded mine sitting in my house yesterday. I guess, I need to go out and re-install while the units are on the boat.