Not sure what to do about the "not turning on" part, but I have a solution to my problem
which was the same as a few other people.
I called 800-878-5779 option #5 (which is their customer service phone number that apparently doesn't appear in any of the materials that were in my package, or in any convenient place on their website).
I have a M4208RD-B which was stuck on "initilizing" and not being recognized by my computer.
According to the customer service folks, I needed a firmware
update which seems only to be available through a magical email that they sent to me. The email also contains instructions on how to upload the firmware through a series of timed button pushes.
Here are the instructions included in my email:
M42- Initializing problem or not powering on:
Download firmware upgrade included in this email
Hold play/pause button for 15 seconds
Hold menu button for 10 seconds
Attach M4204 via USB
cable while holding play/pause button
This should start the firmware upgrade
Possible an error message
of “cant write to disk” will pop up
Firmware upgrade will end with error do not close
Go to My Computer find the drive that holds the MP3 player
Right click scroll down to format, format the player
Run firmware upgrade again
The firmware that they sent me in the email was v 126.96.36.199, which is not listed under the Opal 4208 on the website. It is under the 4204 player on the website
As you can see in the above email that they sent to me, I got the firmware update for the 4204. I would think that the update on the website is the same as the one that they sent me in the email, but I'm not 100% sure. To be 100% you could just call the 800 number and get your own email.
Hope this helps.