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How to Unlock an Australian Phone — Telstra, Optus and Vodafone AU

Australia is a good market for consumers — the major carriers release devices free on request — and a confusing one for buyers: Telstra, Optus and Vodafone AU keep separate records, and a huge share of handsets are sold on 24- or 36-month plans and resold inside the term. "Unlocked" in a listing means very little.

Short answer. Start with the $0.03 check to confirm the lock and the carrier. If you are the account holder and the device meets the carrier’s conditions, the unlock is normally free — the operator’s own page is ACMA — mobile phone unlocking. If you are not, or the carrier refuses, the record has to be released from the supply side, and the services at the bottom of this page are the ones that apply.

What the message actually means

The activation policy is held against the IMEI by the operator. No code for an iPhone.

Telstra uses a different network technology history (CDMA legacy) but the lock mechanics are the same.

The phone is not damaged and it is not stolen by default: the manufacturer holds an activation policy against the IMEI that names the carrier the device may activate on. Until that record changes, every other SIM is refused at activation — Wi-Fi keeps working, which is why a locked handset can look perfectly healthy in a shop.

What you are seeing

Step 1 — check before you spend

  1. Settings → General → About → Carrier Lock.
  2. The carrier and SIM lock check ($0.03) to separate Telstra, Optus and Vodafone AU.
  3. The blacklist check before purchase.

Step 2 — what the carrier’s policy says

Australian carriers release devices free of charge on request once the device is paid off and not reported; the request comes from the account holder. Devices inside a plan are refused.

ACMA guidance requires carriers to be clear about unlocking, and both Telstra and Optus publish self-service paths.

Published requirements

The current wording is always on the carrier’s page: ACMA — mobile phone unlocking.

Step 3 — if you qualify, get the free unlock

  1. Identify the carrier by IMEI.
  2. Request the unlock from that carrier.
  3. Restart with the new SIM.

Step 4 — if you do not qualify

Devices inside a plan, and second-hand handsets the buyer cannot request, need a supply-side release. The Australian tiers are carrier-specific.

ServicePriceCovers
Australia & NZ Service Unlock - All iPhones$4Apple · Australia
Australia Optus Unlock & Unlock Code NCK Out of Contract - iPhone & Generic$4Apple · Optus · Australia
Australia Telstra Unlock - iPhone & Generic$4.50Apple · Telstra · Australia
Australia Telstra Unlock Code - Samsung, ZTE & Generic$9Samsung · Telstra · Australia
Australia & NZ Policy Unlock Code - Samsung, Motorola & Generic Test$18Samsung · Australia
Australia Open Carrier Unlock Code - Samsung, Motorola & Generic$32Samsung · Australia

6 services in this guide. Prices are live; sign in for volume pricing.

What does not work

Why it can still fail

Frequently asked questions

Is an Australian unlock free?

Yes, on request, for the account holder.

Can I unlock a phone still on a plan?

Not through the carrier; a paid tier covers it.

Does it survive an update?

Yes.

What about Boost and Belong?

MVNOs on the same networks with their own records.

How do I check before buying?

A $0.03 carrier and SIM lock check.

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Last checked 2026-10-28. Carrier rules are summarised from the operators’ own pages; where a rule has changed since, the operator’s page wins.