How to extract Apps from Device?

[jobber2001]

Hi, I have a Android TV Box, there is an App on it which is installed by the Factory, how can I extract it without rooting the device?

I allready used AppMoster, so I got the apk, but it seem to be not enoght...I guss there is some more system files on the device, but I cant found it...

so I hope you guys can help me out

 

[mikedt]

Couple of reasons possibly:-

1) Because it's a pre-installed system app, it needs to be installed as a system app, which means you need root, and maybe even a custom recovery. You can't just sideload it into another device.

2) It may well need some additional frameworks, modules, system files, etc, that are not in the device's ROM of what you're trying to install it to.

Is it a pre-installed media player or streaming app? And what make and model of device and Android version have you actually got there? If it's a no-name Chinese one, you're very probably out of luck.

BTW Oppo's pre-installed camera app that comes with the Find 7 is like this, you can't install it into a custom ROM on the same phone, because that requires some additional system files, frameworks or binary blobs, that are not in any custom ROMs. The Oppo camera has a couple of extra features that are not in any other camera app in Google Play. Presumably it can be done, it probably takes someone to hack the manufacturer's ROM and find out exactly what's needed for it to work.

 

[jobber2001]

it is a Chinese no name device..."qnet live tv hd" in the name of the app i want(streaming app).
so is there any chance to get it?