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Call of Duty Black Ops 7 (BO7)

Yuri's Lab Serum Symbols Solution

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CoD BO7 Yuri
This is guide for the Yuri's Lab serum symbols solution in Call of Duty Black Ops 7 (BO7) Zombies. Read on to learn what each symbol means and how to solve Yuri's Lab serum symbols.

List of Contents

Yuri's Lab Serum Symbols Solution

Symbols on Board Correspond to Collected Objects

CoD BO7 Vial Turns Red

After interacting with the powder on the table in Yuri’s Lab, three sets of symbols will appear on the board. Each set corresponds to one object you need to interact with. Use the reference below to see which symbols match each item!

Inputting the correct code or interacting with the three objects in the right order will turn the vial red, while inputting the wrong code will turn the vial black. If the vial turns black, you must wait until the next round to try again.

Object Symbols
Human Bones Human Bones Human Bones Symbols
Hoard Husk Chunks Widow's Lantern Hoard Husk Chunks Symbols
Mysterious Limbs Mysterious Limbs Mysterious Limb Code
Ravager Eyes Ravager Eyes Ravager Eyes Symbols
WidowHoard Husk Chunks Widow

Ashes of the Damned Easter Egg Walkthrough

Add Blood and Survive the Soulbox Event

CoD BO7 Soulbox Blood Event

Once the vial turns red, interact with it to add blood and start a soulbox event. You’ll be trapped in the lab and must kill zombies until the room fills with purple smoke and opens again.

Your health will be decreased, so we highly recommend doing this event with a full squad that has Juggernog perks to protect the person who sacrificed. If the sacrificer is downed, you will have to add blood again to repeat the event.

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