What if Unicom card has no service?

Unicom's mobile phone number display has no service:

1. If other Unicom users around can use it normally, first conduct a power-on and power-off test to see if it can be restored; If you can't test the card replacement, then see if this card has the same situation on other mobile phones. If it is the same as before, you can take the card to the nearest business hall and ask the staff to assist in the test. If this is not the case, I suggest you take your mobile phone to ask after sale.

2. If other Unicom users around have the same situation, please call the customer service hotline 100 10.