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No Margin for Error is an Exploration Mission found in Wuling in Arknights: Endfield 1.0. Check out how to harmonize the arrays of stabilizing rods, how to unlock this mission, its walkthrough, and all its rewards in this guide!

You can unlock No Margin for Error after completing the Three Swords of Mastery and has no level restriction.
Three Swords of Mastery Mission Guide

To start the mission, find and talk to Fang Ze in Wuling City. You can find her south of the Residential Area. She asks for help with the stabilizing rods.

Interact with the flow control node and use the jet drone to spray clean water. Make sure to keep the meter within the highlighted bar to harmonize the stabilizing rod.

Approach the flow control node and interact with it fill your jet drone with the water. Use this to harmonize the stabilizing rod.

Talk to Fang Ze again as she analyzes the anomaly. You follow her as she heads to the next array.

Head to the second array of the stabilizing rods. Find Fang Ze just behind you already at the second array.

You would need to harmonize three rods. The first one is just beside Fang Ze, while the other one is near the second flow control node.
| Harmonize the Second Array of Stabilizing Rods | |
|---|---|
| 1 | ![]() You can interact with the second flow control node, which is on higher ground. Head up the stairs in the side to reach the node. |
| 2 | ![]() Spray the first stabilizing rod located beside Fang Ze. |
| 3 | ![]() After the first rod, the second rod will appear near the second flow control node. Spray the node until it reaches 100%. |
| 4 | ![]() The third stabilizing rod will spawn to the west of the last rod. Spray the rod to complete this objective. |

Head back down to talk to Fang Ze. There is another program error, and you head to the third array to fix this.

Head to the third array of stabilizing rods by going to the corner with the crates. Jump up the crates to reach the area of the third array.

For the third array of stabilizing rods, you will need to harmonize three rods. The challenge is to simultaneously harmonize the second and third rod.
| Harmonize the Third Array of Stabilizing Rods | |
|---|---|
| 1 | ![]() The third flow control node is located directly in front of the first stabilizing rod. Interact with it to make refilling faster. |
| 2 | ![]() Spray the first stabilizing rod until it reaches 100%. |
| 3 | ![]() The second and third stabilizing rod will appear at the same time. Keep the meter within the bar for both of the rods since both will contribute to the percentage. |

Head back down and talk to Fang Ze. There is only one more anomaly left to fix before doing a reboot. After rebooting, the entire array caused thermal spikes and a fourth array appears.

Go ahead to the fourth array of stabilizing rods to fix the anomaly. Go through the back exit of the west building and make a right to reach the fourth array.

Use the jet drone to spray water on the stabilizing rods. This time, there will be one stabilizing rod, then there will be three that will spawn at the same time. Remember to control the meters to complete the objective.
| Harmonize the Fourth Array of Stabilizing Rods | |
|---|---|
| 1 | ![]() Interact with the fourth flow control node just down the stairs from the stabilizing rod. |
| 2 | ![]() Keep spraying the first rod until you reach 100%. This will spawn three new rods at once. |
| 3 | ![]() Spray all three rods to control all the meters. Keep the meters within their bars until you reach 100%. |

Return to Fang Ze and reboot the stabilizing rods. This time, the reboot is successful with no more anomalies showing.

Talk to Fang Ze who thanks you for your help. Her mentor is also present and tells Fang Ze that they will be examining the data together.

After talking to Fang Ze, approach Fu Qiu and talk with her. Finish the dialogue to complete the mission.
| Total Quest Rewards |
T-Creds x4050 |
Protohedron x1 |
Oroberyl x50 |
|---|---|---|
You also receive 200 Operational EXP for completing the quest.
| Mission Type | Exploration Mission |
|---|---|
| Location | Wuling, Wuling City |
No Margin for Error is a Exploration Mission that's located in Wuling City. This mission can be unlocked after completing the Three Swords of Mastery mission.

No Margin for Error Mission Guide



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