Sony Walkman Service Menu Access (Update 2016)
*Update* - Posted new instructions, thank you Robert
Here is how to access the service menu in the S-Series, E-Series and A-Series. Before anyone tries this, I caution you that you may brick your player and stop it from working.
If anything goes wrong during the process, I recommend you press the reset button on the back of the device in order to reset it. Unfortunately there is no guarantee that the reset will work. So please use this at your own discretion.
Seems there is a new way to get into the A860 service menu. I have tried this on my A845 and entering the code does not enter the service menu.
1. Make sure you are on the main menu.2. Put the player on Hold
3. Press the following keys in order:
Another older method is posted below:
1. Go to the main menu of the player
2. turn Hold ON
3. now press these keys in order
To exit the Test mode, go the main selection screen then press
up/down and select EXITTEST then press right and select SURE, finally press the play/pause button, turn the power off and release the test mode
I am not responsible if your player stops working or if you encounter any errors.
Instructions for the older E430 Walkman below: