I just started blackberry Q5, which is a little white. I just bought a Unicom card. I don't know why the mobile phone display can't detect the card. The card insertion method is correct. how

The mobile phone card cannot be used for the following reasons:

1. Insufficient contact between the mobile phone card and the metal contact of the mobile phone;

2. The mobile phone card is damaged;

3. Is the location a signal blind area or there is no signal suddenly.

Tips: You can try to put your mobile phone card in other mobile phones for testing. If it still doesn't work, I suggest you take your mobile phone card to the business hall for testing. If you want to know more about Unicom's business problems, please click here /R3xvQjB to understand or ask questions, and someone will reply within 24 hours.