西班牙 2GB 15 天

iPhone

1. Go to Settings › Cellular and tap your travel eSIM under SIMs
2. Keep Turn On This Line and Data Roaming on, then tap Network Selection
3. Turn off Automatic, wait 1–2 minutes for the list, then tap the strongest network. A tick means it is locked

Android

1. Samsung: Settings › Connections › Mobile networks. Pixel and others: Settings › Network & internet › SIMs, then tap your travel eSIM
2. Keep Data roaming on, then tap Network operators (on a Pixel the setting is on this same page)
3. On a dual-SIM phone pick the eSIM tab first. Turn off Select automatically, wait for the search, then tap the strongest network

Which network to pick

• Pick the most signal bars, 5G or LTE first, and avoid 3G
• Only pick names from this plan's network list above. If it says it cannot connect or shows No Service, pick another
• Still slow? Try another one, compare speeds and keep the faster
• Lost signal after moving to a new city, or back home? Turn automatic back on