When pressing the cue button on ndx400 all functions gets activated

You need to take it to the shop and get the switch replaced. It shouldn't cost more than an hour's labor/bench charge and the cost of the switch. Depending on your market probably $75-100.

Click this to unload the latest firmware from the manufacturer!
DM6 Module - Firmware Update [v06]
DM6 Firmware Update Installer for Windows. Updated 04.26.2012

Fix'dYa

If the menu button on your Zoom H4n recorder is not selecting or responding when pressed, it could be due to a few different reasons:

1. The button is physically damaged or stuck: Check the button to make sure it is not stuck or physically damaged. Sometimes dirt or debris can accumulate around the button and prevent it from working properly.
2. The firmware needs to be updated: If the Zoom H4n recorder has not been updated recently, it's possible that the firmware needs to be updated. This can be done by connecting the recorder to a computer and downloading the latest firmware from the Zoom website.
3. The recorder needs to be reset: If the menu button is still not responding, you can try resetting the recorder to its factory settings. This can be done by holding down the "Menu" button and the "Track" button at the same time until the message "Init All" appears on the screen. Then, press the "Record" button to confirm the reset.

If none of these solutions work, it's possible that there is a hardware issue with the recorder and it may need to be repaired or replaced.

I had exactly the same problem. You need to press the "Track Push" knob when you have selected the track you want you can then hit "play" to play the track.

If your Zoom Handy Recorder H4n is stuck on the ZOOM window and you are unable to access the menu or use the recorder, there are a few things you can try to fix the issue:

1. Try restarting the recorder by turning it off and then back on again. This can often resolve software issues.
2. Check the battery level and make sure that the recorder has enough power to function properly. If the battery is low, charge it or replace it with a new one.
3. Try a hard reset by removing the batteries and/or the SD card, then press and hold the power button for 10 seconds before reinserting the batteries and/or SD card.
4. If the above steps do not work, try updating the firmware of the recorder. You can download the latest firmware from the Zoom website and follow the instructions for updating the firmware on your device.
5. If none of the above steps work, you may need to contact Zoom's customer support for further assistance. They may be able to provide additional troubleshooting steps or repair options.

It's important to note that if the recorder is still under warranty, you should contact Zoom for repair or replacement.

hmm there must be a button w a secondary function for the auto cue. if not are you using software with it. check there as well. if you cant find it let me know ill do some research for ya.

do a folder with just 10-12 tracks in it.

Have a look in your manual at the sections on Note Repeat and Time Division.NOTE REPEAT] – Holding this button while
striking a pad causes the pad to retrigger at a
rate based on the current Tempo and Time
Division settings. The Note Repeat feature can
be synced to an internal or external MIDI Clock
source. [NOTE REPEAT] can function as a
latching or momentary button
19. [TIME DIVISION] – This button is used to specify
the rate of the Note Repeat and Arpeggiator
features. When [TIME DIVISION] is activated,
you can press one of the 8 switches to specify a
time division. [TIME DIVISION] can function as a
momentary or toggle button.
Please note that while [TIME DIVISION] is active,
the 8 assignable buttons will not function as MIDI
CC or Program Change switches until [TIME
DIVISION] has been de-activated.
20. [ARP ON/OFF] – This button enables and The manuals and updates can be downloaded here:http://www.akaipro.com/mpk49 Please let me know if this helps.