What number should I send text messages to if I turn on the yellow diamond on China Unicom’s mobile phone?

To activate Yellow Diamond on China Unicom mobile phone, you can use China Unicom mobile phone to edit the QQH text message and send it to 10661700, and then activate it according to the prompts on the text message and bind the QQ number.

Remarks: After sending, you will receive a system text message about the second confirmation (binding) QQ number. Reply according to the text message content to activate Yellow Diamond. Finally, you must reply with a system text message to inform you that it has been successful. Open the Yellow Diamond Nobility to be sure.