if the Huicheng epidemic prevention applet can't get in, you must first turn on the location function of your mobile phone. If the location is not within the scope of Huizhou, you can't operate it. Please go back to Huizhou and register again. Please turn off the mobile phone positioning and delete the applet, then turn on the mobile phone positioning again, re-scan the QR code or WeChat search for "Huicheng Epidemic Prevention" to enter the applet, and authorize to obtain the positioning and mobile phone authorization. Or repeat this operation later. For other tips of operation failure, you can slide down on the main page of WeChat to bring up the applet list, then press and hold the "Huicheng Epidemic Prevention" applet to pull in the delete icon, scan the QR code again or search for the "Huicheng Epidemic Prevention" applet on WeChat to log in again.