20 Most Recent Lowrance LMS 332c Mapping Sonar/GPS Receiver Questions & Answers

I have found several units that have the same problem. All turned out to be a defective keypad. And almost all are specifically the power button. Not something Lowrance will repair. I've been purchasing some of these units for parts. If you still have it I might be interested. [email protected]

I am guessing that the card you are using is a NAVIONICS chart? There have been some Lowrance units that were made around the same time that have had problems recognizing a Navionics chart right from power up.

Make sure the LMS-332 has the latest firmware version which can be downloaded from http://www.lowrance.com/en/Products/Marine/Full-Size-SonarGPS-Chartplotter-Combos/LMS-332C/Downloads/LMS-332C-Software-Update/

If the update doesn't help, this is going to be a compatibility problem with the LMS-332 and that particular card. You will need to replace the card or upgrade to a newer unit...but probably can just get used to removing and replacing the card when you turn the unit on.

try to hold in the page button and power button at the same time to reboot your unit, But you may or may not lose waypoints,

I would verify that your "chart speed" is set to 100%.

Triton72

Are you utilizing another unit in your dash? If so, sometimes when both units are on and in sonar mode, their frequencies will intefere with each other causing the vertical lines. I would suggest turning your dash unit off or lowering it's Hertz rate from 200Hz down to 50Hz.

Funny story...I saw this same issue on my boat years ago. I had an X102C up fron and an LCX-19c in the dash. I acutally thought it was some sort of man-made structure and spent time fishing it...DOH!

Greetings, Please consider returning the device to the manufacturer and purchasing a Garmin GPS from amazon, BestBuy, or Walmart. Garmin has been around for at least 1 decade and I believe has a more solid brand name than Lowrance. Thank you.

Hi, Please test the backup sd card on another GPS if possible to see if the zoomed-in section of the map file shows up or not. If it shows, then you'd need to send in your lowrance gps for repair from the water damage. Thank you.

Only from the maker, or a somewhere like here https://www.sparesmarine.co.uk/webshop/electronics/globalmap-3500c/lowrance-globalmap-3500c-spares-accessories/?brandFilter=Lowrance%20GPS%20Chartplotter

Help & Support ' Fishing Electronics ' Lowrance USA ...

www.lowrance.com > help-and-support > guideTitle=Gl...

home. share. GlobalMap 3500C Unit and Accessories Information. language. mail_outline. link. GlobalMap 3500C ... 101-99. Flush Mount Kit. FM-5. 113-04.

https://www.youtube.com/watch?v=WsBrRPeYB8g https://www.youtube.com/watch?v=H_R3-eC9iy0

https://www.google.com search gives a number of manuals that may be what you are seeking. Example: ftp://software.lowrance.com/Documents/Hook2-Series_OM_EN_988-11760-001_w.pdf

Possible free manual if this it: ftp://software.lowrance.com/Documents/Hook2-X-Series_OM_EN_988-11747-002_w.pdf

https://ww2.lowrance.com/Root/Lowrance-Documents/HOOK2/Hook2-X-Series_OM_EN_988-11747-002_w.pdf

Ebay.com has several broken or used models with an old printed manual. Example: https://www.ebay.com/itm/Lowrance-iFinder-Pro-Handheld-GPS-Receiver-Parts-COULD-NOT-GET-TO-POWER-ON/263937791236?epid=15013553996&hash=item3d73eb1504:g:VpoAAOSwWTJbnE5Z