Run WeChat on iPhone, go to Me >> Settings >> General, you will then open the General Settings of WeChat as displayed in below screenshot of iPhone. Choose Chat Log Migration from WeChat settings screen above, then the Chat Log Migration screen opens like below. You will be prompted to enable Wi-Fi for Chat Migration.
When you call a dead phone does it ring?
Answer: A: With a dead battery it should not ring but it should go to voicemail directly.