Iphone5 SMS phone can't send out, and it can't send a signal.

Cannot dial the mobile phone for the following reasons:

1, the cell phone signal is poor, which may be related to the calling card. You can take down your mobile phone card, wipe it clean and put it back. See if the cell phone signal has improved.

2. If redialing the card still doesn't work, you can also find someone else's calling card to try the effect. If someone else's card is changed, the signal is not bad, indicating that there is something wrong with the mobile phone card. You can change your calling card at the telephone operator.