Simrad NSS Evo2 Problems – 4 Troubleshooting Tips

simrad nss evo2 problems
simrad nss evo2 problems

If you’re looking for more processing power and a seamless experience, then sticking with Simrad NSS Evo2 is the best option for you.

As long as this unit is working perfectly, you won’t have any interpretation or deduction issues from this device.

Many experts have pointed out the better efficiency of this unit on bigger boats.

So, if you’re also working with a bigger fishing setup, then going with Simrad instead of Garmin or Lowrance might just be the right choice for you.

With that said, there have been quite a few queries on common problems with the Simrad NSS Evo2. If you’re interested in this question, the following list of issues should give you a better insight into Simrad NSS Evo2.

People should note that there are different problems they can run into and each of them has varying reasons.

This is why it is essential that you go through the information provided below carefully as it will help you in finding the exact reason behind your issue.

Once done, you can then use the solutions provided to fix the problem and ensure that the same issue does not appear again.

This is a great way of ensuring that you can continue using your Simrad NSS Evo2 without having any worries.

Simrad NSS Evo2 Problems

  1. Losing Bottom

One of the leading issues that users have pointed out while using this unit is that the SS will keep losing the bottom whenever users try to change the frequency.

You’ll notice a ton of users complaining about this issue from time to time. Most often than not, this problem can be traced back to firmware issues, and you can easily update the firmware to maneuver this problem.

In some situations, you’ll have to wait for a new update to roll out if you’re already on the latest firmware. So, make sure to reach out to Simrad customer support and explain this issue to you.


They will help you with the complete update procedure and also guide you through the proper troubleshooting methods if the problem is not related to the firmware.

All in all, if you’re losing bottom while using the Evo2, the problem is likely related to the software version on the electrical unit.

Ideally, everything should start working after a software update but if you’re unable to fix the problem by updating the firmware, call customer support immediately.

Some people might also run into issues trying to update their firmware version which can be quite annoying.

When it comes to this, people should note that there are several things that can be kept in mind. The firmware version that you are currently using should be kept at a stable version.

There are several beta updates that roll out but the main issue with them is that these are not stable.

While you can get new features by installing the beta versions, it is recommended that you avoid them and only install stable updates.

You can usually visit the official website for Simrad and select your NSS Evo2 model to find all the updated versions listed for it .

  1. Display Goes Dark

It is not rare for users to complain about the display going dark and the appearance of fine lines on the screen. These lines can be quite annoying and make it impossible for users to interpret the information present on the screen.

Luckily, this issue is not that severe, and you can get around this problem by following a few basic steps. If you’re struggling with a dark screen issue, then you can easily reboot the power connections, and that should fix the problem.

However, if you’re still stuck in the same issue then there is a good chance that you’ve turned off the backlight. You’ll just have to turn up the brightness of the screen by using the power button, and that will be the end of the display issue.

power button

On the other hand, if you’re dealing with fine lines on the screen, then you need to isolate other electrical devices on your boat. The electrical noise from these units can interfere with the display on your Evo2.

So, if you’re in a situation with fine lines on the screen, just increase the distance between Evo2 and other electrical units.

After you have isolated the devices, you can then keep them at a distance in the future to ensure that the same problem does not appear again.

Sometimes people might have to change the frequency channels of the devices if the issue is still not getting fixed. However, you need to understand that there are other reasons behind this issue as well.

This is why if the problem persists then simply move on to the next step.

  1. Flickering Problems

Along with the presence of fine lines, you’ll also sometimes run into issues with the backlight flickering.

The flickering issues with the backlight are traceable back to corroded connection points or irregular flow of power in the system.

power up

So, if you’re in a similar situation and the screen keeps flickering, then you need to check the wiring connections and the power output.

To check the power output, you can connect a multimeter to the terminals of the unit.

After that, you can match the voltage with the desired levels mentioned in the owner’s manual. Similarly, cleaning the connection points with a vinegar solution will help you get around the flickering problem.

All in all, these were a few issues that you can expect with Simrad NSS Evo2.

In most situations, you won’t have to spend any extra money on replacement components. These issues are pretty minor and are fixable with a few troubleshooting methods.

On the other hand, if you’re struggling with a unique problem, then make sure to involve an expert.

That way, you won’t have to waste any time guessing the issue, and the expert will help you better manage your display unit.

  1. Contacting The Support Team

In most cases, the steps provided above are enough to deal with most problems that your Simrad NSS Evo2 can run into.

Although, if you notice that none of these are working for you then these indicate that you are dealing with a faulty or damaged part.

People can usually open their transducer and go through its different parts to check if any of these are faulty. However, this will take a lot of time and it is much better that you contact the support team instead.

This is especially better for users that don’t know how the device works.

The great thing about customer support is that they will go through all the parts on their own and find the main reason behind your issue.

The only thing that you have to do is provide the team with all the details about your problem and ensure that you don’t miss out on anything important.

Once done, the team will then ask you some further questions regarding the issue to ensure that the problem is isolated. This is why make sure that you provide them with all the details required about your issue.

If none of the troubleshooting steps work, then you have to send your device back to the brand.

They will then get the damaged parts replaced with new ones and ensure that the same problem does not appear again.

If you have a warranty service valid then make sure that you use it here as it will allow you to get free repairs and replacements.

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