My mobile phone is Xiaomi m 1, but after connecting the mobile card, the caller can't hear my voice and send text messages, but can receive text messages.

Restart it and see how it works. If there is something wrong with the microphone, it will be repaired. Just tap Nokia 5230 a few times before. You can try. No texting. Check the delivery center number in your settings or restart it. Yesterday, the C-meter telecom card could not send short messages, so restart ok.