If you are not using a Samsung Galaxy S5, you must manually edit line #30 of the fzip.sh script to match your device.
Move files like boot.img , apps ( .apk ), or library files ( .so ) into the corresponding subfolders within the working directory. Frthzip
While "Frthzip" does not appear to be a standard or widely recognized software or term, it is likely a misspelling of or F-zip . If you are not using a Samsung Galaxy
Clone the f-zip repository to your device or Linux PC. apps ( .apk )
F-zip is a shell script for Linux and Android used to create flashable .zip files for custom device recoveries.
Unpacks a single file from an existing archive. 2. F-zip (Android Recovery Generator)