lowrance 3d structure scan problems

Lowrance 3d Structure Scan Problems: An Easy Guide To Resolve Them


Lowrance Structure Scans creates a three-dimensional vision of the underwater by scanning topography and structures. But whether you are a new owner or a veteran, it’s quite normal to face some problems while operating the scanner.

Don’t know what to do about this problem? That’s alright, we got you covered on this topic.

So what are the Lowrance 3d structure scan problems?

Some common Lawrence 3D Scanner problems include the display not starting and improper 3D pictures. Moreover,  the software may not properly update. If the problem is with the display, charging the battery, or performing a soft reset will fix it. A transducer properly installed can fix the problem as well. 

Are you interested in learning more? We have all the details in our article, so keep on reading!

Some Common Problems of Lowrance 3d StructureScan

Whether it is a Simrad or a Lowrance structure scanner, it’s common for scanners to have problems. Let’s have a look at the problems you might be having and how to solve them.

Display Won’t Start-Up

The boat’s scanner often shows a splash screen when taken to the water. It won’t go past the screen or do anything. 


There are a few options for resolving this issue. Let’s see what can be done-

Charge the Battery

The first thing you should do is check the battery’s remaining capacity. If the battery is low, you need to connect it to a charger. But it should be a regular one. You must connect the negative and positive clips to the appropriate ports.

While the battery is charging, turn your unit on. The display should startup and move past the splash screen. 

Check for Any Loose Connection

Check for loose wiring in the boat if your battery is completely charged. A loose connection might cause a scanning problem. It can be under the console where your unit is plugged in.

Check to ensure if the unit is properly and securely plugged in. Also, check and reconnect the field wires of the alternator field disconnect while you’re at it. When there is a power outage, these frequently come off.

Do A Soft Reset

If you are still getting only the splash screen, the next thing to do is a soft reset. In order to do so, first, disconnect the power. Then plug it back in again. Press and hold the page key while pressing the power button.

You will be hearing a beep sound at this point. Continue to hold the page key for another 10-15 seconds after this. This will put your unit into a soft reset. After this, the display should come back on and work just as usual.

If your unit is still not operating, you should get professional assistance.

Transducer Problems

Sometimes even after the display is working properly the scanner doesn’t show the area as it showed in the commercial. This happens when your transducer is not installed properly or facing the wrong side.

While in the water, your boat might get hit by something that makes the transducer go up. It won’t be leveled with the boat anymore. This may cause the image problem as well. 

And in other cases, water plants or debris might get stuck at the front of your transducer. This makes it hard to produce a better image. 


The transducer needs to be installed parallelly with the bottom of your boat. Even a slightly tilted down may cause a huge difference to your imaging.

You should always install a high-quality transducer for better imaging results. On that note, we’ve compiled a list of some of our favorite transducers.

Product 1
Product 2

Updating Software

The structure scan updates are not automatic in Lawrence 3d.To make the update work properly, you must manually install it. 

If you just add the new update to your micro SD card and put it in the scanner it won’t update by itself. Let’s check how you can update the system-


First, power on your whole system during the process. Insert the micro SD card into the scanner’s bottom slot. Then to the storage option. Check the folder where you have put the new updated version. Click on the file, and choose the upgrade option.

At this point, it’ll show the upgrade file. The ‘Start Upgrade’ option will appear at the bottom after you have picked the file. Select that button and it will start upgrading.

Wait a few more minutes if it shows 100% but the status is showing ‘rebooting module’.Now after rebooting is complete, turn off the scanner. Then, after 1 minute, turn it back on. The new update should start working after this.

Make sure after installing, the displayed software version is the new updated version.

We genuinely hope we were successful in resolving your scanner problems. And now you can go back to fishing again but make sure your outboard motor has not been sitting for too long.


Question: Are side scans any worth the cost?

Answer: Side imaging is a powerful tool that is well worth the extra money. You can quickly scan broad regions for critical locations, buildings, and the fishes you’re looking for using side imaging.

Question: Is fish visible on down imaging?

Answer: Yes, it allows you to observe fish in great detail. Down imaging is one of the most cutting-edge fishfinder technologies available today. If sonar detects something noticeable at the bottom, turn on down imaging as soon as possible to get a better view.

Question: Which is better side imaging or down imaging?

Answer: For those who go shallow water fishing, side imaging is the best choice. And in the case of more vertical fishing, down imaging sonar is the right choice.

Final Words

This leads us to the conclusion of our article. We hope you know all the lowrance 3d structure scan problems. 

Let us know if you liked the article and learned something new in the comments section below.

Until then, have a good summer!

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