[Q] flashing SD to internal memory f**ked up my device

Hello!
Well, about a month ago i've bought a brand new moto g 2015 8gb/1gb and all went well untill i flashed the external SD card to internal memory and moved the data to it, then my nightmare begun *evil/dreamy music plays*
- the home button do answer when i tap it but there is no function on it
- notifications are not displayed at all...
- moto screen not working
- lockscreen not working
- battery charge speed decreased considerably
- cant reach to quick settings
- factory reset button locked (gray letters, cant tap it)
- moto gestures not gorking
- the phone get really overheated while charging
- some other functiones are locked (same as factory reset)

As it was a brand new phone, i sent it to motorola so they would provably fix it... and they did..... Once i get back to my home with my phone working at 100%, flashed the SD card as internal memory before installing any app on it, so guess what! SAME PROBLEM ALL OVER AGAIN
hopefully i've downloaded an app so i could factory reset and it worked. my question is (if any one know) why is it happening??? now i cant flash sd card as internal memory coz im afraid it will break my phone all over again...

ANY GUESS?????'

from xda-developers http://ift.tt/1TbIp54
via IFTTT