1. First, create a new folder named APK folder, create a text file named signer.txt under this folder, and enter the following code.

2. Change the format to. Bat and batch formats.

3. Then copy the apk packages (which can be multiple) to the apk_Folder folder, and delete the signature file META-INF of apk.

4. Copy the certificate (debug.keystore) to the APK folder.

5. Finally, double-click re-signer.bat, and then run. The re-signed file will appear in the APK folder.