Hello, if you have successfully applied for a certificate authorization code at the counter before, please log on to the following website /cmbpb/v36/pb.htm, which contains [Shenzhen Telecom Download 1] [Shenzhen Netcom Download 1] [Shenzhen Telecom Download 2] [Nanjing Telecom Download 2]. You can click any download address to download and install the professional version first. After successful installation, a red "China Merchants Bank Professional Edition" icon will be generated on the desktop. Please open the icon, click "Use File Certificate", and then click "Enable Certificate" to follow the prompts. Another warm reminder is that at present, the counter can only handle mobile documents, and has stopped handling file documents. If you have any other questions, please log in to Online Customer Service (website: /cmu/icslogin.aspx? from = B& amp； Logincmu=0), we will serve you wholeheartedly! Thank you for your concern and support for China Merchants Bank!