✪ Check Game8 Endfield Twitter for daily tips!
★ Make your own tier list - contest is ongoing!
★ Best Builds: Gilberta | Laevatain | Ardelia
★ AIC Guides: Early | Mid | Late Game
★ Hot: Essence Tool | Reroll | Dailies | Blueprint
★ Umbral Monument: Stage 1 | Stage 2 | Stage 3

Mysterious Signal is a Main Mission in the Smoking Embers quest series of Arknights: Endfield. Check out how to unlock this mission, its walkthrough, and all its rewards in this guide!
| Previous Mission | Next Mission |
|---|---|
| Temporary Peace | Conference of the Four |
List of Contents
| Mission Type | Main Mission |
|---|---|
| Quest Line | Smoking Embers |
| Chapter | Chapter 1 - Process 4 |
| Location | Valley IV, Power Plateau |
Mysterious Signal is the seventh quest under the Smoking Embers mission series. This quest is under Chapter 1 - Process 4 of the main story and is located in Power Plateau.

Mysterious Signal is immediately unlocked after completing the Temporary Peace quest and has no level restrictions.
Temporary Peace Main Mission Guide

Talk to Yvonne at the Originium Science Park and discuss about dealing the remaining Active Blight patches in Valley IV.

Go to the TP-Point just outside the Research Center. To the right is the first Protocom Signal Tower. Approach to connect the Signal Tower.

Use the TP Point in the Logistics Area. Head down the platform and head east. Use the jump pad to get past the gap and go to Royle by the Second Protocom Tower. Approach to connect the Signal Tower.

Go back to the Originium Science Park and talk to Yvonne. She amplifies your Protosync to achieve the desired Blight scanning feature.

Head down the shaft to the first floor with Yvonne. She presents a device that simulates Blight wavelengths to make glops of Blight.

Perform a scan to decrypt a mass of Active Blight and expose its Blight Core. You can now directly perform scanning with your Protosync to decrypt Active Blight.

Teleport to the TP-Point near Plateau Trunkway and make your way to the Originium Power Plant. As you enter, you hear a battle happening at the second floor.

Head up the stairs to see the damage done to the area. Scan the Active Blight that blocks the path and destroy its exposed core. It is revealed that Lycia has been causing the destruction, and Perlica vaguely talks about her intentions.
| Total Quest Rewards |
T-Creds x8700 |
Protoprism x15 |
Origeometry x3 |
|---|---|---|
Arms INSP Kit x20 |
||
You can also get 500 Operational EXP for completing the mission.

Mysterious Signal Main Mission Guide

Genshin Impact Walkthrough & Guides Wiki
Honkai: Star Rail Walkthrough & Guides Wiki

Arknights: Endfield Walkthrough & Guides Wiki

Umamusume: Pretty Derby Walkthrough & Guides Wiki

Wuthering Waves Walkthrough & Guides Wiki
Pokemon TCG Pocket (PTCGP) Strategies & Guides Wiki

Abyss Walkthrough & Guides Wiki
Zenless Zone Zero Walkthrough & Guides Wiki

Digimon Story: Time Stranger Walkthrough & Guides Wiki

Clair Obscur: Expedition 33 Walkthrough & Guides Wiki

Fire Emblem Heroes (FEH) Walkthrough & Guides Wiki

Pokemon Brilliant Diamond and Shining Pearl (BDSP) Walkthrough & Guides Wiki

Diablo 4: Vessel of Hatred Walkthrough & Guides Wiki
Super Smash Bros. Ultimate Walkthrough & Guides Wiki
Yu-Gi-Oh! Master Duel Walkthrough & Guides Wiki

Elden Ring Shadow of the Erdtree Walkthrough & Guides Wiki

Monster Hunter World Walkthrough & Guides Wiki
The Legend of Zelda: Tears of the Kingdom Walkthrough & Guides Wiki

Persona 3 Reload Walkthrough & Guides Wiki
Cyberpunk 2077: Ultimate Edition Walkthrough & Guides Wiki
Copyright © 2022 - 2025 GRYPHLINE. All Rights Reserved.
The copyrights of videos of games used in our content and other intellectual property rights belong to the provider of the game.
The contents we provide on this site were created personally by members of the Game8 editorial department.
We refuse the right to reuse or repost content taken without our permission such as data or images to other sites.