An installation error can come from a carrier lock, device compatibility, connection problem or activation code. The wording alone does not prove which one applies.
Check these first
- Look in the phone's SIM settings to see whether the eSIM already installed.
- Confirm the exact model and market variant support eSIM.
- On iPhone, check Settings > General > About > Carrier Lock. An unlocked phone shows No SIM restrictions. Only the relevant carrier can remove its lock.
- Use a stable internet connection. If needed, try another trusted Wi-Fi network or temporarily disconnect a VPN.
- Check for a system update when you have a suitable connection and enough battery.
If the phone reports its profile limit, do not delete a working or reusable eSIM without checking it first.
If the code was used before, see "This code is no longer valid". Otherwise send support the exact error, device model and software version. Keep QR codes and activation details out of public screenshots.