Yes. Installing a ByeRoaming eSIM requires an internet connection to download the profile — use Wi‑Fi (or another stable connection) before you travel. After the eSIM is installed, you do not need Wi‑Fi to use cellular data abroad on the destination network.
Practical tip: Install at home or at the airport Wi‑Fi before you land. For most plans, validity starts on first local network connection, not at install.
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