Redmi mobile phone card has no text messages.

Excuse me, which version of your mobile phone is and which carrier's network is used?

1, if it is not the cause of poor signal in your environment, please open Settings ~ Mobile Network ~ Network Type Selection ~ Select only 2G network and try to see if it is effective.

2. If it doesn't work, please take out the sim card, reinstall it, and try to see if it works.

3. It still doesn't work. I suggest you try another sim card.

4. If it still doesn't work, please take the phone to Xiaomi's authorized repair point or Xiaomi's home near you for testing.

Address and telephone number of authorized maintenance outlets: /c/service/poststation/.

Address and telephone consultation of Xiaomi home /c/ Xiaomi home

The working hours of Xiaomi House are from Tuesday to Sunday, from 10 to 6 pm.

The after-sales principle of genuine Xiaomi mobile phone, red rice mobile phone and Xiaomi tablet is non-artificial damage: return within seven days and exchange within fifteen days.

During the one-year warranty period, non-man-made damage is completely free.

I hope the above reply can help you.