Transferring Steam Guard

If Steam Guard is active on a smartphone or another device, you can transfer it to NebulaAuth without disabling Steam Guard first. In this case, a short 2-day delay is applied (More details: Trade hold)

It is important to understand that this is a transfer, not a copy. After the process is complete, Steam Guard stops working on the previous device.

The transfer is performed through the official Steam mechanism.

✅ Requirements

Before you start, make sure that:

• mobile Steam Guard is active on the account, either in the Steam mobile app or another application
• a phone number is linked to the account
• you have access to the phone to receive SMS
• you know the login and password of the account

Warning

Important

If a phone number is not linked to the account, the transfer is impossible. First link the number through the Steam mobile application or on the Steam website.

🧭 Transfer process

Step 1: Launch the transfer wizard

1. In the top menu, click Account → Move Steam Guard
2. The transfer wizard opens

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Step 2: Log into the account

Enter the login details:

• Login — the name of the Steam account
• Password — the password for the account
• Proxy (optional) — the selected proxy will be used during the transfer process

Click Proceed.

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Step 3: Steam Guard code from the phone

Steam will request the current Guard code:

1. Open Steam Guard on your phone
2. Find the 5-digit confirmation code; it updates every 30 seconds
3. Enter the code in NebulaAuth
4. Click Proceed

You can also approve the login on the mobile device.
In this case, click Proceed without entering the code.

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Step 4: SMS code

An SMS with a confirmation code will be sent to the linked phone number.

1. Enter the SMS code
2. Click Proceed

You have several attempts. If the code does not match, the application will ask you to enter a new one.

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Step 5: Done

The transfer is complete. The screen will display:

• R-code (Revocation Code) Write it down and store it in a safe place (preferably on paper)
• SteamID — the account identifier

The maFile has been created and added to the account list. You can now generate Guard codes and confirm actions directly from your computer.

🔄 What happens to Guard on the phone?

After the transfer:

• Guard on the phone stops working
• old codes will no longer work
• the new Guard works only in NebulaAuth, or in another application if you copy the new maFile

✅ Transfer completed, what's next?

After the transfer, the account appears in the list on the left.

The following sections cover the main application features:

• Interface overview — the main interface elements and their purpose
• First steps — a quick start for generating codes and confirming actions

❓ Frequently asked questions

Can I transfer Steam Guard without a phone number?

No.

The phone number is a mandatory requirement for transfer through the official Steam mechanism.

If I had a 15-day trade delay, will it become 2 days after the transfer?

No.

Trade holds run in parallel and do not stack.

If the account already has a hold, for example 15 days, the transfer will not increase it, but it also will not shorten the total period.

➡️ As a result, the longest active hold applies

More details: Trade hold

Can I use Guard on the phone and in NebulaAuth at the same time?

No.

Transfer is not copying, but recreating the maFile.

After the process is complete:

• Guard on the phone stops working
• codes from the old device become invalid