It may be that Adobe Reader has not been downloaded and installed on your computer. You need to first check whether Adobe Reader is installed on your computer. If it is not installed, please go to the Adobe official website to download and install it. It is also possible that it is not charging. If you are using the universal USB shield for the first time, please charge it for three hours first.
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1. Use U-shield for digital signature: First, go to the Shenzhen Municipal Market and Quality Supervision Administration to download what you need BJCA multi-CA compatible control and digital certificate driver, download address: /psout/jsp/gcloud/pubservice/network/downPageSimple.jsp. After the download is completed, click the installation file and follow the prompts to install the control and digital certificate driver. Check whether Adobe Reader is installed on your computer. If not, please go to the Adobe official website to download and install it. Adobe download center address: /downloads.html, insert Ukey, use adobe reader to open the PDF document to be signed, you can see the area that needs to be signed in the left navigation bar, click to jump to the corresponding area. Click on the area to be signed, and the digital certificate list shown below will pop up. Select the digital certificate to be signed and click "Continue". After entering the page, click "Sign" to complete the signature. A save dialog box will pop up, just save it. Note: Each time you sign, the document must be saved. If there are 5 areas that require signature, the document will be required to be saved 5 times. After completing all areas in the document that require signature, click the "Submit" button in the upper right corner of the document homepage to submit the document. At this point, the digital signature is completed.
2. USB key, the customer certificate USBkey launched by ICBC in 2003 and obtained a national patent, is a high-level security tool provided by ICBC for online banking services and is used to identify users in the network environment. Digital certificates are currently the highest-level security tool for online banking clients. U-Shield is the common name of U-Shield and it is the guardian of online banking security. It looks like a USB flash drive and acts like a shield to protect the safety of online banking funds at all times. U-Shield uses high-strength information encryption, digital authentication and digital signature technology, which is non-replicable, can effectively prevent payment risks, ensure the safety of customers' online payment funds, and is easy to use.