How to upgrade the sonic resonator to the feedback resonator in Subnautica 2

In Subnautica 2, players can unlock the Feedback Resonator by scanning two fragments of the new tool.

Fragments can be found in locations like the Alien Ruins, Cicada wreckage, Iso's Blackbox, and Zip's Blackbox, with additional materials often gathered from spots such as the Axum metal farm.

Once the blueprint is unlocked, craft the upgrade at the Modification Station using the required advanced components.

The Feedback Resonator replaces the Sonic Resonator and fires a charged blast at longer range, making it more useful against tougher enemies and for progression.