: The initial boot logo seen when the device is powered on.
To see the exact list of files inside without extracting the entire archive, you can use the following methods: 7z File Format - The Library of Congress
: Typically uses LZMA or LZMA2 , which provides a high compression ratio (often 30–70% better than standard ZIP). HTC.7z
: May include AES-256 encryption for both file content and filenames if password-protected.
: Starts with a 32-byte signature header with the magic number 7z (hex: 37 7A BC AF 27 1C ). : The initial boot logo seen when the device is powered on
: Instructions for the flashing tool on where to write each file. Technical Archive Structure
The .7z extension indicates the file uses the , which offers specific technical features: : Starts with a 32-byte signature header with
: Contains the Android OS, pre-installed apps, and system libraries.