Why won't my Lùmen license key activate?

Three things cover almost every case: activation needs an internet connection (the key is verified with the licensing server), the key must be pasted in full including the dashes (copy it straight from your purchase confirmation email), and each license activates on up to 3 Macs — past that limit, activation is refused until you deactivate an old machine or contact support for a reset.

How do I move my license to a new Mac?

Deactivate the license on the old Mac first, then activate on the new one with your original key. If the old Mac is gone or you can't deactivate it, contact support (dimix@dimix.it) and we'll reset the activations for you. A license covers up to 3 Macs at the same time.

Does Lùmen work offline with a license?

Yes. Once activated, the license keeps working offline for up to 30 days between validation checks — plenty for a workshop Mac that rarely goes online. Just connect it to the internet and open Lùmen every now and then to refresh the validation. If the app ever locks after a long offline stretch, going online and relaunching restores it.

← FAQ

My license key won't activate

Licensing & purchase · Updated: July 21, 2026

Activation verifies your key with the licensing server and unlocks Lùmen on that Mac. When it fails, one of three things covers almost every case.

The three usual causes

No internet connection.
Activation needs to reach the licensing server once. Make sure the Mac is online, then try again — after that, the license also works offline.
Incomplete key.
Copy the full license key, including the dashes, straight from your purchase confirmation email. Retyping it by hand, or a copy that misses a segment, is the most common activation failure.
Activation limit reached.
Each license activates on up to 3 Macs. Past that, activation is refused until a seat is freed — see below.

Moving your license to a new Mac

Deactivate the license on the old Mac first, then activate on the new one with your original key. If the old Mac is gone (sold, dead, wiped) and you can't deactivate it, contact us and we'll reset the activations for you.

A major hardware repair (like a logic-board swap) can make the Mac look like a new machine — if Lùmen asks you to activate again after one, just re-enter your key.

Using Lùmen offline

Once activated, the license keeps working offline for up to 30 days between validation checks — plenty for a workshop Mac that rarely goes online. Connect it to the internet and open Lùmen every now and then to refresh the validation. If the app ever locks after a long offline stretch, going online and relaunching restores it.

Lost your license key?

Your key is in the purchase confirmation email from Lemon Squeezy (our payment provider) — search your inbox for “Lemon Squeezy” or “Lùmen”. Can't find it? Contact us from (or mentioning) the email address you used at purchase and we'll look it up.

Refunds

If Lùmen doesn't work as expected, you can request a refund within 14 days of purchase — contact us or use the Lemon Squeezy order page linked in your confirmation email.

Still stuck?

Reach out to support with the email address you used at purchase and roughly when you bought — we typically respond within 24 hours.