How to unlock the Feedback Resonator in Subnautica 2

The Feedback Resonator is an advanced modification for the Sonic Resonator that you’ll need to reach the endgame in Subnautica 2. It allows us to solve a puzzle that activates the fourth Angel Comb.

But first, we will need to find the blueprint fragments.

Feedback Resonator blueprint locations in Subnautica 2

Before you reach the blueprint locations, you’ll need to upgrade your Tadpole with the Depth Module Mk. 1, or it will take damage, as the blueprint is located at almost 600m depth.

With that out of the way, head east from your lifepod. You’ll first reach the Alien Ruins, where the Research Outpost is. From there, head a few metres straight, and you’ll reach the Power Center. Dive down, and you’ll find the Angel Comb.

Go straight from the Angel Comb, and you’ll find a room with a pool full of toxic green liquid. Go a few metres forward, and look to your left. You’ll find the first fragment by a rock.

Next, return to your Tadpole and swim 50m upwards. Then head straight past the pool, and you’ll find a pink light glowing in the dark.

There’s a platform at the base of this light, with the second fragment on it. Scan the second fragment, and you’ll unlock the Feedback Resonator blueprint.

How to craft the Feedback Resonator in Subnautica 2

To get the Feedback Resonator, you’ll need the Modification Station.

While the Feedback Resonator will require a Sonic Resonator, it will be added as a separate device in your inventory.

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The Bioscanner is a pretty important tool in Subnautica 2, and we will need to unlock it to reach the end of the campaign in the early access. Moreover, we can also use it to scan alien lifeforms, which gives us more perks like extra Biomods.

Like most things inside the game, we will have to find the blueprint for this item before we get to use it.

Bioscanner blueprint location in Subnautica 2

To unlock the Bioscanner, we need to scan just one blueprint. However, we will have to travel all the way to the fourth Angel Comb in the Alien Ruins. From there, keep moving upwards until you come across a crashed Alterra starship wreck.

You can refer to the image above to find the entrance. You’ll need the Repair Tool to proceed since one of the key doorways will be inaccessible at first. Repair the door, and head to the next room. Take the door on your left in this room, and go to the next one.

You’ll find an Iso in this room resting on a dining table and an upgrade for your Tadpole submarine. Look carefully at the corner, and you’ll find a hole that goes through a chamber. Follow the chamber until you reach the end, and you’ll come across the Bioscanner. Use your Scanner to unlock the blueprint.

How to craft the Bioscanner in Subnautica 2

The Bioscanner is an upgrade over your Scanner, and you’ll need the Modification Station. You’ll also need the required resources to craft the Bioscanner. This item scans quicker, and it also allows you to check out certain lifeforms that aren’t detected by the ordinary scanner.

Moreover, you’ll also need the Bioscanner to scan the broken turbine before you can activate it to reach the end of the game (as of writing).

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