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I've got a lowrance Globalmap 3500c which runs uses the LGC-2000 GPS module. I was having some issues with losing the signal last year, so I thought I should install the update. The update page said I should update the LGC-2000 GPS module first than update the head unit second. I downloaded the update and followed the instructions for installing it. The install progress bar came up, never showed any progress then the install timed out. From that point on, the head unit wont even recognize the LGC-2000 on the network. Everything else on the network shows up, but no GPS module. So now I've got the infamous "GPS Module Not Responding" message. Anyone ever ran in to this one before? I've tried the following:
Checked voltage and connections (11.8v)
Checked the rest of the NMEA 2000 devices (LMF-200, Fuel Flow, and Fuel Level devices are all listed)
Created a mini network with just the head unit, LGC-2000, a "T" connector, and 60hm terminator
Disconected Globalmap NMEA power wires and powered the net with seperate network power supply
I saved my data and ran a hard reset
Installed the update for the Globalmap
Everything was at least functional untill I tried updating the LGC-2000.
The antennae is probably grilled. I have a LCX110c with the same GPS module. Mine started to act erratically at some point having problems locking on to the satelites, loosing connection etc. And one final day I got the lost connection message. I got a new module from Lowrance after I send it in, Later on I have updated the sofware with no problems. They had doubts if it was the module or the instrument so I returned the instrument itselv for a check also. It showed up to be the GPS module, but in the service department found a couple of pixel errors on the screen, so they returned a new screen unit also. I hadn't recognized it myself. Now that what I call good service.
Hope you get it fixed now its boating season.
Regards from
Thomas
(who reasonly caught an Atlantic salmon of 25 lbs in the Baltic sea using his LCX110c/LG2000 combo to guide to the right spot)
I'm pretty sure that whatever the problem is, it has to do with the failed GPS module update rather than a bad GPS module. It was working when the udate started.
I do not own a lowrance, but I have updated firmware on other devices many times in the past. If the load your attempting to load in corrupted, or the wrong file was accidentally selected the device will act like it has failed.
Are there any other files on the SD disk you used?
Rich
__________________ 2005 29 Luhrs Open (Custom) W/ Outboards!
2007 Sea Hunt BX22T - SOLD
The SD card was empty. I had previously used it to update my Lowrance H2O hand held but I made sure to delete everything on the SD card prior to downloading the LGC-200 update.
I've got a lowrance Globalmap 3500c which runs uses the LGC-2000 GPS module. I was having some issues with losing the signal last year, so I thought I should install the update. The update page said I should update the LGC-2000 GPS module first than update the head unit second. I downloaded the update and followed the instructions for installing it. The install progress bar came up, never showed any progress then the install timed out. From that point on, the head unit wont even recognize the LGC-2000 on the network. Everything else on the network shows up, but no GPS module. So now I've got the infamous "GPS Module Not Responding" message. Anyone ever ran in to this one before? I've tried the following:
Checked voltage and connections (11.8v)
Checked the rest of the NMEA 2000 devices (LMF-200, Fuel Flow, and Fuel Level devices are all listed)
Created a mini network with just the head unit, LGC-2000, a "T" connector, and 60hm terminator
Disconected Globalmap NMEA power wires and powered the net with seperate network power supply
I saved my data and ran a hard reset
Installed the update for the Globalmap
Everything was at least functional untill I tried updating the LGC-2000.
Any thoughts (aside from trash talking Lowrance).
My first thought is that your voltage is way too low and that may impact your ability to burn devices. (The devices will *run* at low voltages, but updating firmware is a different matter) None of those devices use much power so voltage drop through the wire should not be an issue unless you have really bad connections. If the battery is in good shape you should at least be showing battery voltage (12.6). I suggest you try fixing this first, then try my second suggestion. What does the voltage show with the engine running?
2nd suggestion is to try reburning the LGC with at least 12.6v showing on the 3500. Running the engine to get the voltage up is an option.
Worst case is the update actually started and now the firmware on the LGC is toast. If that's the case, only Lowrance can fix it.
I've got a lowrance Globalmap 3500c which runs uses the LGC-2000 GPS module. I was having some issues with losing the signal last year, so I thought I should install the update. The update page said I should update the LGC-2000 GPS module first than update the head unit second. I downloaded the update and followed the instructions for installing it. The install progress bar came up, never showed any progress then the install timed out. From that point on, the head unit wont even recognize the LGC-2000 on the network. Everything else on the network shows up, but no GPS module. So now I've got the infamous "GPS Module Not Responding" message. Anyone ever ran in to this one before? I've tried the following:
Checked voltage and connections (11.8v)
Checked the rest of the NMEA 2000 devices (LMF-200, Fuel Flow, and Fuel Level devices are all listed)
Created a mini network with just the head unit, LGC-2000, a "T" connector, and 60hm terminator
Disconected Globalmap NMEA power wires and powered the net with seperate network power supply
I saved my data and ran a hard reset
Installed the update for the Globalmap
Everything was at least functional untill I tried updating the LGC-2000.
Any thoughts (aside from trash talking Lowrance).
My first thought is that your voltage is way too low and that may impact your ability to burn devices. (The devices will *run* at low voltages, but updating firmware is a different matter) None of those devices use much power so voltage drop through the wire should not be an issue unless you have really bad connections. If the battery is in good shape you should at least be showing battery voltage (12.6). I suggest you try fixing this first, then try my second suggestion. What does the voltage show with the engine running?
2nd suggestion is to try reburning the LGC with at least 12.6v showing on the 3500. Running the engine to get the voltage up is an option.
Worst case is the update actually started and now the firmware on the LGC is toast. If that's the case, only Lowrance can fix it.
Ken
Ken, Sounds like you're right. The batteries we a bit low as the boat just got out of winter storage. I just spoke to Lowrance and they said that for the update to process correctly, the voltage must remain at 11.8 or higher. My guess is that it may have briefly dipped below 11.8v causing the update not to install properly. Lowrance is sending me a shipping label and fixing it at no charge which is good. I just wish that they would have had a warning on their website about the voltage issue relative to the update install. It would have saved them some $ and I wouldn't be without my GPS for however long it will take to get back. Had I known, I'd have topped off the batteries first.
Thanks for the help guys. If anyone has any other ideas, let me know. It'll probably be a few days before the shipping label gets here.
I've got a lowrance Globalmap 3500c which runs uses the LGC-2000 GPS module. I was having some issues with losing the signal last year, so I thought I should install the update. The update page said I should update the LGC-2000 GPS module first than update the head unit second. I downloaded the update and followed the instructions for installing it. The install progress bar came up, never showed any progress then the install timed out. From that point on, the head unit wont even recognize the LGC-2000 on the network. Everything else on the network shows up, but no GPS module. So now I've got the infamous "GPS Module Not Responding" message. Anyone ever ran in to this one before? I've tried the following:
Checked voltage and connections (11.8v)
Checked the rest of the NMEA 2000 devices (LMF-200, Fuel Flow, and Fuel Level devices are all listed)
Created a mini network with just the head unit, LGC-2000, a "T" connector, and 60hm terminator
Disconected Globalmap NMEA power wires and powered the net with seperate network power supply
I saved my data and ran a hard reset
Installed the update for the Globalmap
Everything was at least functional untill I tried updating the LGC-2000.
Any thoughts (aside from trash talking Lowrance).
My first thought is that your voltage is way too low and that may impact your ability to burn devices. (The devices will *run* at low voltages, but updating firmware is a different matter) None of those devices use much power so voltage drop through the wire should not be an issue unless you have really bad connections. If the battery is in good shape you should at least be showing battery voltage (12.6). I suggest you try fixing this first, then try my second suggestion. What does the voltage show with the engine running?
2nd suggestion is to try reburning the LGC with at least 12.6v showing on the 3500. Running the engine to get the voltage up is an option.
Worst case is the update actually started and now the firmware on the LGC is toast. If that's the case, only Lowrance can fix it.
Ken
Ken, Sounds like you're right. The batteries we a bit low as the boat just got out of winter storage. I just spoke to Lowrance and they said that for the update to process correctly, the voltage must remain at 11.8 or higher. My guess is that it may have briefly dipped below 11.8v causing the update not to install properly. Lowrance is sending me a shipping label and fixing it at no charge which is good. I just wish that they would have had a warning on their website about the voltage issue relative to the update install. It would have saved them some $ and I wouldn't be without my GPS for however long it will take to get back. Had I known, I'd have topped off the batteries first.
Thanks for the help guys. If anyone has any other ideas, let me know. It'll probably be a few days before the shipping label gets here.
That's very good Cust Service on Lowrance's part. I think for the most part their Cust Service is pretty good, though there are certainly cases of folks reporting bad CS.
Frankly, updating firmware on ANY device is a little bit dangerous, because if anything all all goes wrong, the device usually becomes useless. Usually the only fix is using a special setup that only the mfg would have.
You're right, they should have a warning on the update page about voltages. I actually looked for one before I posted my reply above. :^)
Glad to hear they're treating you right. For what its worth, though there's been some problems with the LGC-2000, plenty of them seem to be working well. I have one and its been solid. (I also did an update on it last year)
I would check all the electrical conections first and verify that your batteries are fully charged. Beyond that, if it's still being recognized by the head unit, you could try downloading and installing the update. Just make sure your voltage is above 12v.
You have to click the "click to remove device safely" thing down on the toolbar. The actual update files don't look like they're something that most PC's would have the right program to run.
Just an update. Lowrance found problems with both the head unit and the antenna module and decided to replace both with new units free of charge. It took a little under two weeks to turn around and a week total in transit. Not great, but pretty normal for an electronics repair these days. They definitely need to reduce the time that you have to sit on hold, but in this case, they did a great job of standing by their product despite the fact that it was out of warranty.
Lowrance update problems. PLEASE HELP! 
