i have been using samsung a50 128gb internal storage device for 1year now….due to some repeated restarting problem,i took it to a repair shop…the repair shop said it cannot be fixed…then i brought it home and ,out of anger,hit my phone on some wooden furniture…then surprisingly,it opened and unfortunately there was a factory reset…ny problem is that now it is showing that my internal storage is 16 gb only!!!!but i had 128gb internal storage…whats the problem??did the repairman do something??what can i do??