If the signatures don't match, Android will block the installation with an "App not installed" error. Why Users Seek to Kill Signature Verification
Before you download any "Signature Killer" APK, you must weigh the risks involved: kill signature verification apk download
It hooks into the Package Manager Service to bypass the signature check during installation. 3. Manual Smali Editing This is the "hard way" and involves decompressing the APK. Tool: Use APK Easy Tool or MT Manager. If the signatures don't match, Android will block