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How do I replace my SIM card? (Australia)

How to replace a lost, damaged, or faulty SIM card for your Spacetalk Mobile plan in the Spacetalk App.

Replace a lost, damaged or faulty SIM in Australia from the Spacetalk App and keep your existing number and plan. Go to Membership, choose your plan and tap Replace SIM.

Who this is for: Spacetalk Mobile customers in Australia who need a new physical SIM or eSIM to replace a lost, damaged or faulty one.

How to replace your SIM

Step 1: Open Membership

Open the Spacetalk App and tap Membership at the bottom of the screen.

Spacetalk App bottom menu with the Membership tab highlighted.

Step 2: Select your plan

Under Your SIM Plans, tap the plan you want to replace the SIM for.

Spacetalk App Your SIM plans screen listing a handset plan and a watch plan, each with data left and an expiry date.

Step 3: Choose Replace SIM

From the available options, tap Replace SIM.

Spacetalk App Actions list on a SIM plan with the Replace SIM option highlighted.

Step 4: Review the steps and continue

You will see a summary of the SIM replacement steps. If you are replacing with a physical SIM, have the new SIM card ready. Tap Continue when ready.

Spacetalk App Replace SIM screen listing SIM details, Select access type and Enter code steps, with the Continue button.

Step 5: Choose your SIM type

Choose between Physical SIM or eSIM:

  • Physical SIM — enter the SIM serial number printed on the SIM card (it typically starts with 4000), then tap Continue.

  • eSIM — confirm your device is eSIM compatible by ticking the acknowledgement box, then tap Continue.

Spacetalk App SIM details screens: eSIM acknowledgement checkbox and Physical SIM number field.

Step 6: Verify it is you

To prevent unauthorised SIM replacements, enter a verification code. Choose to receive it by SMS or email, then tap Send Code.

Spacetalk App Access type screen with SMS selected as the Access method and the Send code button.

Step 7: Enter the code

Enter the verification code you received and tap Verify.

Spacetalk App Enter code screen with a 6 digit code entry, Resend code link and the Verify button.

Step 8: Done

Your old SIM will be disconnected and your new SIM will become active with the same number and plan. We recommend restarting the device after inserting the new SIM so the device reads the new SIM correctly.

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If you are still experiencing issues, contact our Support team via live chat.

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