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Honkai Star Rail: How to Open the Locked Door in Base Zone (3 Key Card Locations)

The most secure room on the Herta Space Station is open for business!
Key Points
Completion Time:
15 Minutes
Difficulty:
Easy
Rewards:
Trailblaze EXP x30
Stellar Jade x30
The Seriousness of Breakfast (4-Star) Light Cone
Hertareum x40

If you’re looking to open the mysterious triple authentication locked door in Honkai Star Rail’s Base Zone, here’s how to get all 3 Key Cards.

By now, you’ve likely encountered the Base Zone’s strange door that requires three Access Authentication Key Cards to enter. There are some fantastic rewards to be claimed, so don’t miss these Key Card locations:

1st Access Authentication Key Card Location

To get the first Authentication Key Card, fast-travel to the Master Control Zone. There, you’ll need to talk to the Man With Luscious Hair 5 times.

Note: This man appears to some users as Man with Afro but the process is the same.

The fifth time you talk to him, he’ll hand you a Key Card just to get you to go away.

1st Authenticator Key Card Location

2nd Access Authentication Key Card Location

To get the second Key Card, fast-travel to the room on the west side of the Storage Zone.

Here, you’ll need to make it to the far end of the room and investigate the glowing item on the floor. Using Control Devices, you can switch bridges between blue and orange to help you make your way over.

  • First, run along the only path available, using the Control Device to create a blue bridge if needed to proceed, until you get to the central platform.
Blue Orange Bridge Puzzle Honkai Star Rail
  • Before heading up the ramp, be sure to activate the unique Control Device on the room’s lowest platform to turn on the white bridges.
How to Turn on White Bridges Honkai Star Rail
  • Then, use the Control Device hidden behind the boxes on the circular platform ahead to change the bridges to orange.
Hidden Control Device Honkai Star Rail
  • Run up the ramp and over the new orange bridge, then over the white bridge you turned on earlier.
  • Use the Control Device in this area to change the bridges back to blue.
How to Get the 2nd Key Card Honkai Star Rail
  • Then, head to the far end of the room and investigate the glowing spot on the floor.
2nd Authenticator Key Card Location Honkai Star Rail

You now have the second Authentication Key Card!

3rd Access Authentication Key Card Location

If you’ve boarded the Astral Express already and arrived in Belobog, you may already have this Key Card and not have realized.

The third Authentication Card is given as a reward for defeating the first boss in the Road to Revival Side Quest. This quest is unlocked automatically, right before boarding the Astral Express.

Honkai Star Rail Authentication Key Cards

Check your mission list and complete the Side Quest if you haven’t already.

Where Is the Triple Authentication Locked Door?

The triple-locked door is located in Base Zone, attached to the eastern corridor. It requires three Authentication Key Cards to open.

Locked Room in Base Zone

What’s Behind the Triple Authentication Locked Door?

The Triple Authentication locked door leads to a research lab belonging to the Lead Astronomer of the Herta Space Station, Asta.

Inside, there will be two enemies, as well as a chest containing the following rewards:

  • Trailblaze EXP x30
  • Stellar Jade x30
  • The Seriousness of Breakfast (4-Star) Light Cone
  • Hertareum x40
The Seriousness of Breakfast Light Cone Honkai Star Rail

Although getting past the locked door isn’t mandatory in Honkai: Star Rail, getting a 4-Star Light Cone for your efforts makes it well worth your time.

Just be sure to save up those Stellar Jade, there are some incredible characters coming to Honkai: Star Rail very soon!

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