> ## Documentation Index
> Fetch the complete documentation index at: https://docs.qbraid.com/llms.txt
> Use this file to discover all available pages before exploring further.

# FAQ

> Frequently asked questions about the V2 platform.

<AccordionGroup>
  <Accordion title="Where did my credits go?">
    Only credits purchased with a credit card or transferred to you within an organization were migrated from the legacy platform. Promotional credits (e.g., those redeemed via access codes) did not carry over and have expired.

    If your credits lived in an organization (purchased or transferred there), check that you're viewing that organization. "qBraid Default" in the upper left means you're in your personal view. Click the organization name to open the dropdown, switch to the correct organization, and the balance will update.
  </Accordion>

  <Accordion title="Where did my quantum jobs go?">
    Quantum jobs data was not migrated from the legacy platform. To get your old
    jobs data, go to **Jobs** on your [account page](https://account.qbraid.com/)
    and click **Download Old Jobs Data**. You can work with that data using the
    qBraid-SDK. See [Legacy Jobs Retrieval](/v2/home/legacy-jobs) for details.
  </Accordion>

  <Accordion title="Where did my files go?">
    Lab uses a [file sync](/v2/lab/user-guide/file-sync) mechanism, so your files
    can take a few minutes to appear after you launch. Once you're in Lab, check
    the file sync indicator in the bottom toolbar to see progress. You can keep
    working while files populate in the background; after a few minutes, your
    files should be fully restored.
  </Accordion>

  <Accordion title="What are CPU hours?">
    CPU hours measure usage as (number of vCPUs) × (hours used). For example, a
    2-vCPU instance for 3 hours uses 6 CPU hours; an 8-vCPU instance for 2 hours
    uses 16 CPU hours. See [Usage Limits](/v2/lab/user-guide/usage-limits) for
    more.
  </Accordion>

  <Accordion title="What is auto-switch to credits?">
    Your qBraid account has usage limits for AI chat and CPU hours. If you reach a
    limit, you can "switch to credits" and keep using that service. Usage is then
    billed in qBraid credits instead of counting against the quota. Those charges
    appear on your account under **Transactions**.
  </Accordion>

  <Accordion title="Why don't my environments show up in Lab? It says 'Workspace Empty'.">
    After you launch Lab, [files can take a few minutes to sync](/v2/lab/user-guide/file-sync). When sync finishes, refresh the Environment Manager in the sidebar and your environments should appear.

    If sync has completed and you've refreshed Environment Manager but it still says "Workspace Empty," you don't have any environments installed yet. Click **Add** in the Environment Manager, then [install an environment](/v2/lab/user-guide/environments#install-environment) to get started.
  </Accordion>

  <Accordion title="What does 'No Capacity' mean next to a GPU instance?">
    It means all GPU instances of that type are currently in use due to high
    demand. Try again later or choose another instance type.
  </Accordion>

  <Accordion title="What is 'qBraid Default' in the upper left of my account page?">
    On qBraid, you can belong to multiple organizations (e.g., courses, teams, or a personal space). Credits and context are per-organization—the name in the upper left shows which organization you're in, and switching it changes which credits and resources you see.

    **qBraid Default** is your personal organization: your own credits and work, separate from any course or other org you've joined. Credits here are yours (purchased or held in your name), and you have full control with no shared management. Think of it as your individual sandbox on qBraid.
  </Accordion>

  <Accordion title="Why do I need to generate API keys to launch lab?">
    API keys authenticate you with qBraid services. When you launch Lab, we check
    for credentials in `~/.qbraid/qbraidrc`. If none are found, we prompt you to
    create an API key and save it there so Lab, extensions, and the qBraid-SDK
    work without extra setup. For more on creating and managing keys, see [API
    Keys](/v2/home/account#api-keys).
  </Accordion>

  <Accordion title="I ran out of CPU hours and can't access my files—what do I do?">
    When you exhaust your CPU hours, "Launch Lab" is blocked, so it can feel like
    you've lost access to your files. **Your files are still there.** To launch
    again and download them, add credits (or ensure you have credits and **enable
    [auto-switch to
    credits](/v2/lab/user-guide/usage-limits#auto-switch-to-credits)** so future
    use bills in credits). Purchase credits from **Account** > **Wallet** if
    needed. You can also upgrade to Standard or Pro for a higher monthly CPU hour
    allocation.
  </Accordion>

  <Accordion title="Can I submit quantum jobs to IBM devices through qBraid?">
    No. To run jobs on IBM devices you must use your own IBM credentials. qBraid
    does support direct access to other leading QPUs, including Rigetti, IQM, AQT,
    IonQ, Pasqal, QuEra, and more. See the [full list of
    devices](https://account.qbraid.com/devices) on your account page.
  </Accordion>
</AccordionGroup>