any experiences on this? it just happend yesterday. no idea why. i just let my battery reached 0%. . charged it closed. .. opened after 10 minutes.. and then issue arised. cannot mount external and internal memory. . . tried searching several threads but seems no direct solution was given. . please help . .. i am clueless already. . . tried to : 1. took out the micro sd card. .inserted again.. No use. 2. tried another m-sdcard ... same issue 3. placed my sd card on another unit.. went well.