DeviceDecoded
Three · Carrier Unlock

Unlock ONYX from Three

Permanently remove the Three network lock from your ONYX using its IMEI. Use any SIM, anywhere — including international carriers when you travel.

Price

$19.99

Delivery

1-5 business days

Method

Official IMEI

Permanent factory whitelist. No software.

About this ONYX × Three unlock

Three locks devices to its network when sold on contract or financed. Unlocking your ONYX is straightforward once your account meets Three's eligibility criteria — typically the device must be paid off and not reported lost or stolen.

DeviceDecoded uses the manufacturer's official unlock channel. We submit your ONYX's IMEI directly, and once approved, the device is permanently whitelisted. The unlock survives factory resets, OS updates, and SIM swaps.

Three country coverage

Three operates in 9 countries. Your ONYX unlock works regardless of which country it was originally sold in.

  • 🇦🇺 Australia
  • 🇦🇹 Austria
  • 🇮🇪 Ireland
  • 🇬🇧 UK

Popular ONYX models on Three

FAQ — ONYX on Three

Can Three block this unlock?
No. Once your ONYX's IMEI is whitelisted on the manufacturer's database, Three cannot reverse it.
Will my ONYX stay unlocked after a factory reset?
Yes. The unlock is permanent at the factory level — it persists through factory resets, OS updates, and SIM changes.
Do I need my Three account credentials?
No. We unlock by IMEI alone. You don't need to provide your Three username, PIN, or account number.
What if my ONYX is still on a Three payment plan?
It depends on the device's status. Start with the eligibility check at our unlock checkout — that page explains how the two-stage payment works before you commit.

Other brands on Three

Ready to free your ONYX from Three?

Enter your IMEI to start. Money-back if we can't deliver.

Start unlock →