Hallo

First of all, thank you for the advices in this forum which is very helpful.
I am new member, I have the same problem and I'd like to ask in this forum perhaps someone can help me to solve the problem of my mp3 player.
1. MP3 player was fine until when I update the firmware, mp3 player no longer running even blank ..
I check in Windows Explorer, the removable disk is not detected.
Unfoftunately I don't have firmware back up
2. I re-installed the driver of my mp3 player. After the install, in the tray at the right top of the windows shows the USB 2.0 (FS) ADFU Device is detected.
When I plug in MP3 player unplug devices, the speakers alert sounds detected.
But when I check the windows explorer in the removable disk is not detected
I tried the mp3 player utilities.. still, removable disk is not detected ..
Then I check in computer management-disk management, there is also a removable disk is not detected ..
Even devices usage is enable (use this device)
I don't know how to solve it.. I cannot edit/delete or format my mp3 player because the removable disk is not detected
I bought this mp3 player in ebay several months ago, so I don't know where to get service and I can't return it.
This is an example pic which is very similliar to my mp3 player:
One more question, I wonder how to find the correct firmware for our mp3 player? where to find it? is there any way to know the correct one?
My mp3 player spec: Samsung S52 K9W8G0801M PCB0
ATJ2051
It's Car Mp3 player FM with Transmitter
Guys, please help me..
Please forgive for my bad English
Thank you