My phone (alcatel pixi 4) suddenly did not read my sd card. i turned it on and off a couple off times and it still doesnt work. i refused to believe that my sd card had a problem. and i was messing around with the phone and saw this button that says "forget this storage" and accidentally tapped on it. and now i dont have any external storage function and i can only use internal memory as my storage. which is very unconventional since it does not have that big of a storage. is factory reset the only way to retrieve it?