Strange mode on On5 S550TL. Can anyone explain?

[Dingо]

So I was messing around with a Galaxy On5 that Straight Talk had sent me for free. I was rooting it and along my journey I found myself in a very strange mode that I would like to figure out how to return to. The phone booted up with some arrows along the bottom, or gears and said Factory something. It was some strange developer test mode or, something along those lines. It was a weird home screen with blue(I think) squares and abbreviations in them. There was a long stretched green battery bar at the top with segments. There was also some strange applications, but notably, and the reason I want to get back into this, there was what I believe to be the default AM/FM radio app. This app was different from the ones you find by 3rd parties, it had an older appearance and did not require anything to be plugged into the phone jack to work. It also worked quite well compared to other radio apps. There were a few other test type features like vibrate and what not. This was not safe mode, as it almost looked like a completely different operating system. Is there anyone who can give me any insight as to what the heck this was? I have tried Googling all kinds of things to try finding something similar but nothing at all, just the typical Recovery and Download modes which I am already familiar with.

 

[GuestK00286]

Can you post an image? Screenshot or taken with another camera.

It will be very helpful If someone recognizes it.

 

[Dingо]

Can you post an image? Screenshot or taken with another camera.

It will be very helpful If someone recognizes it.

Unfortunately I was unable to get a screenshot or picture when this happened.

 

[GuestK00286]

How did you get back from.
Its surprising no one had found this "easter egg" before.

 

[Dingо]

How did you get back from.
Its surprising no one had found this "easter egg" before.

I think it happened when I flashed a rom. I can't remember I was messing with the darn phone for hours. I might try to replicate it though, haven't decided if I want to risk losing my root.

 

[Dingо]

I figured out the mode is called Factory Binary and is triggered by flasing a firmware I found with odin in AP.

Images won't embed properly. Using prntscr
Edit, after hours of research, I realized it's not some 'secret' mode or anything, it's simply a factory testing software.
Too bad I couldn't pull the AM/FM app from it through, would really like to use it.

 

[sawdoctor]

I figured out the mode is called Factory Binary and is triggered by flasing a firmware I found with odin in AP.

Images won't embed properly. Using prntscr
Edit, after hours of research, I realized it's not some 'secret' mode or anything, it's simply a factory testing software.
Too bad I couldn't pull the AM/FM app from it through, would really like to use it.

Thread closed at op request