The term "signed" indicates that the package has been processed with a private key—usually by the Original Equipment Manufacturer (OEM) like Samsung or Google. This allows the device's Stock Recovery to confirm that the update is official and hasn't been tampered with by a third party. How the Signing Process Works
If you are writing a guide or command-line documentation for signing a custom update package, use this standard technical description: update-signed.zip
: This process adds a signature that the stock recovery uses to confirm the package hasn't been tampered with. 3. Installing via ADB Sideload The term "signed" indicates that the package has