Short answer: if One-Click Install does not work, use the QR code or manual activation details shown on your 4S eSIM page or in the order email sent from hi@4s.net with the subject Start enjoying your eSIM powered by 4S..
Install the eSIM within 1 month before departure. When your phone asks you to name or label the eSIM during installation, choose a clear label you will recognize later, such as 4S eSIM, your destination country or region, or Travel. If you did not rename it, look for the newly added eSIM, a travel/secondary/business label, or the line that shows No Number.
Manual install on iPhone
- Open Settings.
- Tap Cellular or Mobile Service.
- Tap Add eSIM.
- Scan the QR code or choose manual entry if available.
- Label the eSIM clearly, for example 4S eSIM, your destination country or region, or Travel.
Manual install on Android
- Open Settings.
- Search for SIMs, SIM manager, or eSIM.
- Choose Add eSIM or Download a new eSIM.
- Scan the QR code or enter activation details manually.
- Label the eSIM clearly if your phone allows it.
If the QR code or activation code fails
- Check whether the eSIM is already installed in your SIM/eSIM list.
- If it is already installed, do not try to install it again. Select that line for mobile data instead.
- If the code says invalid or no longer valid, contact 4S support through support@4s.net, a Zendesk support ticket, or Zendesk live chat. The eSIM may have already been used.
Do not reuse a QR code after the eSIM has already been installed. Contact 4S support through support@4s.net, a Zendesk support ticket, or Zendesk live chat if you need help replacing an eSIM.
Need help? Do not reply to hi@4s.net; it is an automatic sender. Contact 4S support through support@4s.net, a Zendesk support ticket, or Zendesk live chat. Do not email hello@4s.net for support.