Internet & Connectivity · common
外国のスマホで中国ではデータ通信ができないのはなぜですか？
Last updated:
⚠️ SYMPTOM
海外のSIMカードは電波をつかんでいるのにモバイルデータが使えない、または「データローミング契約なし」というSMSが届く。
🔍 MOST LIKELY CAUSE
ご利用の母国の携帯会社が中国とのローミング契約を結んでいない、もしくは回線でデータローミングが無効になっているため。電波をつかんでいても、母国のネットワーク側でデータ通信がブロックされています。
✓ HOW TO FIX
空港でChina UnicomまたはChina Mobileの旅行者向けeSIM／プリペイドSIMを購入するか、着陸前に母国の携帯会社で有料の日額ローミング・トラベルパスを有効にしてください。
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