Has the OEM messed up?

Question

I recently acquired a new Alldaymall A88S tablet running on Android 4.4.2 KitKat
It appears to be a stock recovery, stock ROM. It was not new, but it was untouched.However, when I booted it, and peeked into the settings, I found some bizarre things:




  • I can record the screen without root (Never mind. I have root, the screen decoder is built-in)

  • Developer options was already unlocked, with USB debugging and allow mock locations already ticked.

  • I have access to mobile data options- yet I have no SIM, and nothing to suggest I should have These options exist

  • Most bizarrely, I have the ability to change the runtime between Dalvik and ART freely, from the developer options.



Has the OEM really failed/deviated from the norm, or has the previous owner tweaked it?


— Dan Brown | Sources

Answer

It's possible that the previous owner rooted the thing or even flashed a custom ROM on it, but simply did a factory reset before handing it to you.




  • Some custom ROMs are known to have USB debugging enabled by default.

  • The existence of mobile data options might indicate that the custom ROM was built for or ported from a SIM-enabled variant of the device. However, it might also be a more pleasant surprise - it might support using certain 3G dongles via USB-OTG. That's the case for one of my past tablets.

  • You are free to change between ART and Dalvik even on stock Android 4.4.x. Some OEMs do hide the option but it's unlikely your OEM is among one of them.



Ultimately I'll say if your device is running normally then just let it be.


— Andy Yan | Sources

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