If you hold a Hong Kong identity card, use the original HKID. If you have not received one, ask the carrier whether your valid travel document is accepted before buying the SIM. Do not use an employer’s or friend’s document to get past an upload problem.
Register through the official channel
Prepare the original document, SIM packaging or eSIM order, and a Wi-Fi connection. Open the carrier’s official app or registration site. Enter your details as printed on the document and follow its verification steps. OFCA’s registration FAQ explains the accepted documents and confirms that registration is free.
If you use HKID without iAM Smart, the provider manually verifies the application. Ask how long this takes; submission does not mean the SIM is ready. Wait for approval, then test a call and mobile data if included in your package.
Keep access to your own account
Keep the SIM holder, receipt, registered name, login and renewal date. Use an email account you can access yourself. If someone helps you install an eSIM, do not leave the only copy of the order or recovery details on their phone. Do not send identity documents or installation codes to an unknown social-media seller.
If registration fails or is reviewed later
Contact the official carrier support with the application reference. Ask whether the issue is the document, the name, an unreadable image or a registration limit. Ask for help in a language you understand before resubmitting. Do not buy a card already registered to somebody else.
A genuine later review may use the sender ID #SIMREG. Confirm the request and deadline through the carrier’s official app or phone number. OFCA says registration verification does not require a money transfer. Ignoring a real review can cause the SIM to be deregistered.