When the controller dies on a thumbdrive, there is no magic software that can recover your data. There is only one solution, and that is to remove the chips and recover the data using proper tools. In the video below we perform the recovery process on such case.
The password you use on your Samsung Galaxy may not really stop Law Enforcement or forensic investigators from getting into your phone. We have been doing this for a very long time using UFED and XRY.