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Do I need to cancel anything? 4

• Do I need to cancel my phone sim card?
• Do I need to cancel my iPad sim card?
• Do I need to cancel my Tablet sim card?
• Do I need to cancel my USB Modem / Wi-Fi Hotspot sim card?

Restoring your iPhone or iPad to your home network 1

• Deleting APN and resetting network settings

I can't get LTE on my iPhone or iPad! 1

• Help me! I can't get LTE on my iPhone or iPad since returning home.