How do I unlock RCA RP 5010A digital voice recorder?

Question edited for clarity. The words 'want' and won't are interchangeable.
Question moved from Cars and Trucks category.

It appears to be a well known issue.

https://www.google.com/search?q=RCA+Digital+Voice+Recorder+RP+5120+won%27t+unlock

..

Press and hold MENU for three seconds.

Go to www.rca.com ... they are in Adio/Video link.

Get manuals at www.rca.com they are in the Audio/Video link.

Go to www.rca.com ..manuals and software downloads are in the Audio/Video link.

I need a manual for RCA Digital voice recorder Model 3 Rp 50128

Hello,
Normally, by pressing and holding the menu button down will lock and unlock the recorder. Since this is not working for you, you can unlock it by opening the battery compartment on the backside of the device and removing one of the batteries and then placing the battery back in and closing back the compartment. This will unlock the device also allowing you to use the functions. When I took the battery out for a split second it did not erase my test recording, but leaving the battery out for a long period of time may erase anything you have saved. I just wanted to make you aware of that. If you need an owners manual you can click the following link which will open in a pdf format for RCA Digital Voice Recorder Model # RP 5020A. I hope this helps solve your problem.

If you would not mind, please rate my help. I would greatly appreciate it. Thank You.

I have this manual on my desktop.  Email me at: [email protected] so I can attach it to a return email.

how do you delete what you have recorded?

Here's the direct link:
http://ec1.images-amazon.com/media/i3d/01/A/man-migrate/MANUAL000013901.pdf