An eSIM is a digital SIM profile stored on a compatible phone, so you may not need to insert a physical card. First, confirm that your exact phone model and mobile plan support eSIM. Availability can differ by carrier, country, and device variant. Ask your carrier how it issues profiles and whether activating one will deactivate an existing SIM. Keep access to Wi-Fi and your account credentials during setup.
Carriers commonly provide activation through their app, a QR code, or guided instructions. Open the phone's cellular or mobile network settings and follow the prompts for adding a plan. Give the line a clear label if you use more than one, then choose which line handles calls, messages, and mobile data. The names of menus vary, so use the carrier's current instructions for your model rather than guessing at unfamiliar options.
After activation, test a call, a text, and mobile data with Wi-Fi temporarily turned off. Do not delete an old profile until you know the new service works and understand whether the carrier can restore it. If activation fails, check the connection, confirm that the profile is intended for your device, and contact the carrier before repeatedly scanning a code. Keep any activation details private, because they may be linked to your account.