if doing so you have to remount the /system partition as it is mounted read only.

via an `adb shell`

    mount -o remount,rw /system

or from outside the device

    adb remount

After this you can copy the content of this file onto the system partition.


Keep in mind that these apk files will rely on some libraries, config files etc, which are also provided in this file and probably it would be best to install the whole as it would be done via the install method in recovery.

Usually you should always prefer the installation through recovery as this is a safe way of installing where you can be sure not to break anything while installing, as the main system is not running.(Broken update.zip files can still break your device :P)