“Unable to Activate eSIM” on iPhone usually means the download or carrier activation failed — often due to no Wi‑Fi, a carrier lock, an already-used QR code, or a temporary carrier/Apple provisioning issue.
Try this
- Connect to stable Wi‑Fi (not captive hotel portals if possible).
- Confirm the iPhone is unlocked and supports eSIM (XS or newer).
- Restart the iPhone, then retry Add eSIM / the ByeRoaming quick install.
- If the QR was already scanned on another device, it may not work again — contact support for a replacement if eligible.
- Remove a failed incomplete plan from Cellular settings only if support advises it, then retry.
- Update iOS and retry without a VPN.
Still blocked? Contact support with your order ID. Related: Why is my eSIM not working? · Install on iPhone.