If you are signing up using Singpass Myinfo, your SIM will only be activated after you have submitted the SIM activation request. Please refer to this guide for SIM activation.
If you have opted for manual sign-up, your new VIVIFI SIM will be automatically activated within 4 hours of SIM delivery/collection.
If your SIM has been activated, upon inserting the SIM into your device, you may be prompted to select the SIM service. Please select "Singtel (Postpaid)" and click "OK" to start using VIVIFI service.
You may contact VIVIFI at firstname.lastname@example.org if your SIM is still not getting any signal after 4 hours.
If you are porting in your mobile number, please note that the temporary VIVIFI number will be activated first. This temporary number will become invalid once your number has been ported in successfully from the other Telco. Click here for more info on mobile number porting.