Passport Prime can easily replace all of your encrypted flash drives with its 50GB of dedicated storage capacity. The Files app on Passport Prime provides a secure and intuitive way to store and manage your most important files. Common file types such as documents, images, videos, PDFs and text files are all supported.

Areas of the Files App

The files app is split into three main areas:

1. Internal - The internal file storage of the device.
2. Airlock - Also internal storage, the Airlock is the only area visible to external devices like your phone or computer when Passport Prime is connected to them.
3. External - The file system of any external storage media plugged into Passport Prime via its USB-C port.

Internal

This is where most of your secure files should be stored. All files in the internal storage are hardware-encrypted and only unlock with your device PIN or password. Access requires physical possession of Passport Prime, there is no remote unlock path.

Tap the three dots in the top right corner to manage your files:

• Select to choose files and folders to move, copy, rename or delete
• Add Folder to create a new folder, after entering a name
• Show hidden files to also list hidden files and folders (tap Hide hidden files to hide them again)
• Search & Sort to search by name and sort by Alphabetical, File Size or Modification Date

Airlock

The Airlock is a segregated part of Passport Prime's internal storage. Think of it like an actual airlock, a secure buffer zone that separates the outside world from the secure interior. It is the only part of the storage that is visible and accessible to external devices such as your phone or computer, when you physically plug Passport Prime into one of them via the USB-C port.

This is particularly useful so you can ensure that external devices only have access to the files you choose when performing transfers.

As with the main internal storage, files inside the Airlock can be managed with the three dots in the top right corner, using Select, Add Folder, Show hidden files and Search & Sort.

When you connect Passport Prime to a computer over USB, the Airlock is shared with the computer. On a new device the Airlock starts in Airlock Read & Write mode, and it switches to Airlock Read Only automatically every time you disconnect the USB cable. In read-only mode the computer can open and copy files out of the Airlock, but it cannot write to it, which protects your device from unwanted changes. Check which mode is set before you connect. If you need to copy files onto the Airlock from the computer, tap the three dots in the top right and choose Airlock Read & Write.

Airlock and USB Connections

While Passport Prime is connected to a computer by USB, the Airlock belongs to the computer, and apps on Passport Prime can't save to it or open files from it. The Airlock tab in Files shows Connected by USB, and file pickers show "Cannot move files to Airlock when Passport Prime is connected to another device via USB."

This affects every on-device flow that uses the Airlock, such as saving a signed transaction (signed.psbt), a signed message, a wallet or multisig export, or a Settings & Data backup file, and opening a transaction, 2FA export, app or firmware update file from the Airlock. Use this order:

• To get a file off Passport Prime: disconnect the USB cable, save the file to the Airlock on Passport Prime, then reconnect to your computer and copy the file across. Read-only mode is enough for this.
• To bring a file onto Passport Prime: set the Airlock to Airlock Read & Write, connect to your computer and copy the file onto the Airlock, safely eject it, then disconnect the USB cable before opening the file on Passport Prime.

External

The external part of the Files app shows the folders and files contained within any external storage media plugged into the USB-C port on Passport Prime. This means a USB flash drive or a microSD card (in a USB-C reader). A phone or computer does not appear here: when Passport Prime is plugged into a computer, the computer sees the Airlock instead. It is from this part of the Files app that you would choose the files you want to import to Passport Prime's internal storage.

When no external storage is connected, this tab shows a Connect USB Device prompt. If you plug in a drive that Passport Prime cannot read, it will offer to Format External Storage so it can be used. Formatting permanently erases everything on the drive, so back up anything important first.

Moving Files

The following steps are for moving files between areas of the Files app, but the same steps can be used to duplicate files by choosing Copy instead of Move, then Copy Here instead of Move Here. Please note that files can only be moved to and from the Airlock when Passport Prime is not connected to an external device like a computer. If you try while connected, Passport Prime will let you know that files cannot be moved to the Airlock over USB (see Airlock and USB Connections ).

To/From the Airlock

To move files into the Airlock from the internal storage:

1. Ensure the Internal tab is selected
2. Tap the three dots in the top right, then choose Select (or tap and hold a file or folder to select it quickly)
3. Tap the gray circle next to each file or folder you want to move
4. Tap the three dots again and choose Move
5. Select the Airlock tab
6. Tap Move Here

To move files from the Airlock to the internal storage:

1. Ensure the Airlock tab is selected
2. Tap the three dots in the top right, then choose Select (or tap and hold a file or folder to select it quickly)
3. Tap the gray circle next to each file or folder you want to move
4. Tap the three dots again and choose Move
5. Select the Internal tab
6. Tap Move Here

To/From External Storage

Repeat the steps listed above, but replace Internal or Airlock with External and your chosen location to move the files to or from.

Managing Files

Rename

To rename a file or folder, tap and hold it to select it, then tap the three dots in the top right and choose Rename. Enter the new name and tap Continue.

Delete

To delete files or folders, tap the three dots in the top right corner, then choose Select. Tap the gray circle next to each item you want to remove, then tap the three dots again and choose Delete. Passport Prime asks you to confirm, as deleted files cannot be recovered.

Repairing a Damaged Airlock

In rare cases the Airlock filesystem can become corrupted. If this happens, opening the Airlock tab displays a message that it needs to be formatted, along with a Format Airlock button. Tapping Format Airlock asks you to confirm, since formatting permanently erases everything inside the Airlock. Once you confirm, Passport Prime reformats the Airlock and it is ready to use again.