Mysterious Signal is the 28th main mission in Arknights Endfield. This walkthrough will guide you through all objectives of the Mysterious Signal main quest.
- Starting Location: Valley IV > Power Plateau
- Quest Giver: Automatically begins after completing Main Mission 27 – Temporary Peace
- Chapter: 1 – Process 4
- Requirement: Complete Main Mission 27 – Temporary Peace
- Reward: Origeometry x3, T-Creds x8,700, Intermediate Combat Record x26, Protoprism x15, Arms INSP Kit x20, EXP x500
- Quest Description: Valley IV remains plagued by Blight issues. Go to the Originium Science Park and seek advice from Yvonne.
Go to the Originium Science Park and talk to Yvonne
Find Yvonne in her lab in the Originium Science Park.
Entering the lab triggers a cutscene.
Go to the first Protocom Signal Tower
Teleport to the depot directly west of the building you’re in. Find the Protocom Signal Tower right next to this depot. Interact with it to download its data.
Go to the second Protocom Signal Tower
Teleport to the Mining Area Clinic in Origin Lodespring. Then head northwest to find the second Protocom Signal Tower.
You can fight the baddies nearby if you like. Otherwise, you can bypass them by running alongside the fence to the north.
Approach the signal tower to trigger a cutscene.
Interact with the tower to download its data.
Go back to the Originium Science Park and talk to Yvonne
Head back to Yvonne’s lab. The closest depot is just east of the lab in Mountain Path Slope.
Approach Yvonne to trigger a cutscene.
Reach 1f of the Research Center
Head back out the way you came and take the elevator back down to the first floor.
Step off the elevator to trigger the cutscene.
Use the test component to locate the Blight Core
Press R2 to scan the Blight. This triggers another cutscene.
Go to the Originium Power Plant
Teleport to the depot just to the east of the Originium Power Plant. Then head west into the plant.
Entering the plant triggers a cutscene.
Go deeper and explore
Continue into the plant, following the same path you took when you completed Main Mission 24 – Counterstrike Brewing. This time, though, you don’t need to ride the conveyor belts.
Run along and past the belt to find a mass of Blight. Scan it with R2.
Reveal the core and destroy it. This triggers a cutscene.
This finishes Mysterious Signal main quest in Arknights Endfield.
NEXT: Conference of the Four
For all other Quests refer to Arknights Endfield Walkthrough.
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