How to add the number of Unicom to the blacklist?

The cancellation method is as follows:

1 Edit the SMS codes "304" to "10086", and follow the prompts to turn off all the phone bill information you don't want.

2. Dial 10086 and press the 0 key to cancel the manual customer service.

Download mobile phone security software, blacklist the changed information, and there will be no harassing text messages. The method is as follows:

A enters LBE security master, harassment interception-blacklist.

B. Enter the blacklist and select one of the following options.

C after entering, intercept the phone and intercept the short message.