Hi, I have THL W8S with Android 4.2.1. I recorded a long file ( 1H 20M )file using the build in android sound recorder. When I tried to open the file in the computer, I could not hear nothing, I opened the file in GoldWave and saw that the file is really empty. My question is why it happened and is there any way to restore the file contents? - I recorded with the device in the past and everything was OK, Could it be because of the surface I put the phone on (I think it was a metal desk)? Thank you!