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Introduction to device slots (licenses)

What a device slot is, how your device limit works, and how to add or replace slots yourself.

Every device you register in the Emteria Hub takes one device slot. Your subscription decides how many slots you can have: your device limit. This article explains how slots work, where you see them and how to add slots yourself.

Slot or license? They mean the same thing. We used to say "license" and are slowly changing to "slot". You still see both words in the Hub and in older articles.

How device slots work

Think of a parking lot with numbered spaces:

  • Your device limit is the size of the parking lot - how many spaces it has in total.
  • Each device slot is one parking space. Every slot has its own code, the activation code.
  • When a device registers, it takes a free slot. Like a car using the parking space. With the difference that from now on, the slot belongs to this device forever. It can never be given to another device. The same device can always come back to its slot, for example after you install Android again.
Term What it means
Used slot A slot with a registered device in it.
Unused slot A slot that's available for a new device, but no device has registered with it yet.
Device limit The maximum number of slots in your workspace, used and unused together. It's part of your subscription.
Activation code The unique code of a slot. You may need it if you register a device with a code.

You usually don't need to do anything

When a device registers and there's no unused slot available in your workspace, the Hub creates a new slot automatically, as long as you haven't reached your device limit. This works the same for every way of registering: with your Emteria account, with an activation code or with a universal license.

So you don't have to create slots in advance. You only generate slots yourself if you want them ready beforehand, for example to enter a code on a device or to replace a broken device.

See your slots

  1. Log in to the Emteria Hub and open Groups.
  2. Click a group and open the Enrollment tab.Group details with the Enrollment tab selected
  3. Scroll down to Device slot usage.Device slot usage: 2 used and 1 unused slot in the group, 3 of 5 slots generated in the workspace

In this example, the workspace has a device limit of 5 slots:

  • Slots in this group: 2 slots have a device, 1 slot is still unused.
  • Slots in this workspace: 3 slots exist in total, 2 more can be added.

You also see every slot on the Devices page. An unused slot is a row with a code, but without a device name. Click a row to see the slot's Activation code.

Devices page with two registered devices and one unused slot without a name

Generate slots yourself

You need the Owner or Manager role in the group or workspace.

  1. Open Groups, click the group where you want to add a slot and open the Enrollment tab.
  2. Under Device slot usage, enter the Number of slots to generate.
  3. Click Generate.

The new slots appear in this group right away, as unused slots. Nothing else changes: no device is affected, and you can use the slots whenever you want.

When you reach your device limit

Once all slots up to your limit exist, no new slots can be added, neither by you nor automatically. Then:

  • Devices that are already registered keep working. They can also register again, for example after you install Android again.
  • Unused slots that already exist can still be used by new devices.
  • A new device is rejected if no unused slot is left.

Need more devices? Contact us to raise your limit.

Replace a broken device

A slot can't be taken away from its device and given to another one. If a device is broken beyond repair, you revoke its slot:

  1. Open Devices and click the broken device.
  2. Open the License tab.
  3. Under Revoke license, click Revoke.Revoke license section with the Revoke button

The revoked slot disappears from your workspace and no longer counts towards your limit. A new slot for the replacement device is created automatically when it registers, or you generate one yourself (see Generate slots yourself above).

Revoking is permanent. The revoked device can never register again. Only revoke a device that will never come back, not one that's just offline or being repaired.

FAQ

Can I move a slot to another device?

No. Once a device has registered, its slot stays with it. To replace a broken device, revoke its slot and use a new one (see Replace a broken device above).

Can I move a slot to another group?

Yes. Slots and their devices can move between groups at any time. See how to manage groups.

I installed Android again on the same device. Do I need a new slot?

No. The Hub recognizes the device and gives it back its own slot.

Do I have to generate slots before I register a device?

No. If there's no unused slot, the Hub creates one automatically during registration, as long as you haven't reached your limit.

Do I pay for unused slots?

No. You only pay for the slots that have a device.

Should I keep activation codes secret?

Yes. Anyone who knows the code of an unused slot can register their own device with it. A used slot is safe: only its own device can register with it.

How many slots does the free plan include?

The Free Workspace includes up to 3 devices. For more, see our subscriptions.