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This is a miscellaneous quest while doing Project Paradise that allows the player character to shutdown ARIC-4. To do this, talk to Quercus or go to the mainframe terminal. One needs to go through all biome labs of A, B, and C to get the Biome lab: Code fragments which are notes that reveal the code.
After acquiring the code, go to the security door in a tunnel and then go down the stairs to a big laboratory. Go to the bottom room and there will be a terminal. Once one gets the shutdown code, go to the mainframe terminal upstairs and there will be a terminal option called "Initiate Shutdown."
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