How to send flyme SMS in Charm Blue note5?

Flyme system optimizes the network information function. Click the menu button in the upper right corner of the information interface, and then click Settings-> Network information: Turn on the "Network Information" switch, enter the mobile phone number (local phone number) that needs to use the network information function, click to get the verification code, fill in the verification code received by the mobile phone, and click "Activate".

When you log in with another Flyme account, the "Online" sign is displayed on the right side of the contact list, and then you can send network information to online contacts.