Learn how to complete the Valley Reboot mission in Arknights: Endfield. Our guide covers Relay Tower installation, PAC unit connections, and combat tips for Chapter 1.
Table of Contents
Valley Reboot Overview and Rewards
| Story Chapter | Chapter 1 |
|---|---|
| Start Condition | Complete "Process: Awakening" |
| Unlocked Features | + Facility List - PAC Units - Relay Tower |
| Rewards | - Origeometry x2 - Valley Stock Bill x300 - T-Creds x700 - Intermediate Combat Record x5 - Arms INSP Kit x4 - Operational EXP x400 |
Valley Reboot Walkthrough Chart
- Go to the Deployment Area
- Eliminate the Landbreaker Squad
- Deploy the PAC Unit
- Deploy the First Relay Tower at the Target Location
- Connect the PAC Unit to the Relay Tower
- Deploy the Second Relay Tower
- Establish a Connection Between the First and Second Towers
- Deploy the Third Relay Tower
- Establish a Connection Between the Second and Third Towers
- Connect the Final Relay Tower to the Power Source
Go to the Deployment Area

Leave the base and head toward the planned installation zone. Simply follow the path indicated by the yellow objective marker.
Optional: Rescue the Industrial Crew

On your way to the site, you may encounter the "Rescue the trapped UWST crew mates" event. This event is optional and can be skipped without affecting the story, but it provides a good opportunity for extra combat practice.
Eliminate the Landbreaker Squad

Upon arriving at the installation site, you will be ambushed by a group of Landbreakers. This battle involves multiple enemies, so focus on area attacks and avoid taking unnecessary damage.
Combat System and TipsDeploy the PAC Unit

Once the area is secure, approach the destination to trigger a cutscene. The PAC installation will complete automatically.
Deploy the First Relay Tower at the Target Location

Open your construction menu and follow the prompts to place the Relay Tower at the designated holographic point.
Connect the PAC Unit to the Relay Tower

Approach the PAC and select 'Start Connection.' Once active, run toward the Relay Tower to link the power cable.
Deploy the Second Relay Tower
| Objective Marker | On-Site View |
|---|---|
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Move to the next highlighted destination and install the second Relay Tower in the construction zone.
Establish a Connection Between the First and Second Towers

Interact with the first Relay Tower and extend the cable to the second tower to establish power flow.
Deploy the Third Relay Tower
| Objective Marker | On-Site View |
|---|---|
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Advance to the final destination and place the third Relay Tower as instructed.
Establish a Connection Between the Second and Third Towers

Connect the second Relay Tower to the third one to complete the relay chain.
Connect the Final Relay Tower to the Power Source
| Objective Marker | Power Terminal |
|---|---|
![]() | ![]() |
Establish the final connection between the third Relay Tower and the power source to energize the Protocol Resonance Tower.
Related Arknights: Endfield Articles
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Gacha Information
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Things to Know Before Release
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