No name displayed when receiving text message

Possibility 2:

1. There are 2 lives saved for the same good code on your mobile phone, so the system cannot recognize it.

2. It’s the 86 problem you mentioned. Generally, the name after adding 86 is saved into the phone book, and then the name can be displayed when a call or text message is received. For the same reason, a landline phone needs to add an area code