I have been an Android developer since late 2009 and finding out every apartment was controlled with an Android tablet got my curiosity. In theory, it seemed like a great idea - why not use a fully developed project like a Galaxy Tab and attach every smart feature to it as an app?

But then I found out that despite paying for all of the smart home equipment, us homebuyers did not actually get any project documentation besides a simplified user manual - even the WiFi access point that connected the tablet and PLCs together with the high-rise internal network (for IP intercom calls and weather) was a "black box" with no SSID/password info and of course no admin credentials info either. I like to own my hardware, so that was a no-go for me.

Even before moving in completely I packed my laptop backpack with USB and ethernet cables and spent a few evenings sitting on the floor in the middle of my new empty apartment getting it to reveal its secrets.

I released the Galaxy Tab from its wall mount and first installed TWRP recovery on it and made a full backup which together with the internal /sdcard contents I stored safely away. Then I installed CF-Auto-Root and finally got access to /data/misc/wifi/wpa_supplicant.conf and the WiFi password which I noted down.