[Forwarded] First, download the software with the certificate and the software you want to replace the certificate for. Open them with File Explorer, locate each main class file, and write down its file name with paper and pen, paying attention to case sensitivity. If the main class file is inside a folder, also write down the folder name, such as com/a. Then, open the bridge file with ClassEditor. In the attached bridge file, 'WebCIient' is the main class file name of the certificate software, and 'Main/PPM' is the main class file name of the software to be replaced. We only need to modify these two places. After modification, use the built-in rename function to make it the same name as the main class file of the certificate software. If the main class file in the certificate software is inside a folder, but the software to be replaced doesn't have such a folder, we need to create a folder with the same name outside and put it in using File Explorer, so that the path of the bridge file in the software to be replaced matches the path of the main class file in the certificate software.
Next is to change the software name. Actually, the name of the certificate software cannot be changed, but we can use another method to achieve the effect of changing the software name. Every software has an icon file named 'icon,' so we can modify the icon of the certificate software. We can write the software name onto the image ourselves, which can be very long, even pushing the real software name to an invisible position at the back. Once everything is done, set the date within the allowed certificate period, click install, and after installation, move it to the memory card. Using File Explorer, sequentially open e/System/AMS, find the installed software's JAR file, copy its file name, delete the file, switch to another interface, put in the software to replace the certificate, and rename it to the file name just copied. After exiting, transfer the software back to the phone (this step is very important). The certificate replacement is then complete.