Why my android device always error to transfer?

Hi ck277,

Thanks for coming to Apple Support Communities for help today. It sounds like you are unable to transfer data from an Android to an iPhone.

It does appear you have seen the correct article. Did you double-check these steps?

 "If you need help with the transfer

If you have issues moving your content, there are a couple of things that you can check:

• Make sure that you leave both devices alone until the transfer finishes. For example, on your Android device, the Move to iOS app should stay onscreen the whole time. If you use another app or get a phone call on your Android before the transfer finishes, your content won't transfer.
• On your Android device, turn off apps or settings that might affect your Wi-Fi connection, like the Sprint Connections Optimizer or the Smart Network Switch. Then find Wi-Fi in Settings, touch and hold each known network, and forget the network. Then try the transfer again.
• Restart both of your devices and try again.
• On your Android device, turn off your cellular data connection. Then try the transfer again."

Have a fantastic day!