Is there a memory card inside this device I can take out and put in another Samsung YP-T9?

SOURCE: Samsung Yepp YP-T9

Yeah I had exactly the same problem with the freezing on start screen.

What you need to do is a clean format of the unit.

Here's what to do:

1) Hold Menu and the A+B Button (the record button with the red circle)

2) With the device now off, connect it to your computer. You should be able to see it's profile under My Computers

3) Right click on the players icon and select full format.

4) Disconnect and restart your player. It should be working now.

The downside is that you will lose EVERYTHING on it but so far I think that's the only way of solving the issue.

This issue is most likely to be cause by a corrupt file that you have copied onto the player.

Cheers,

Robert

Cheer

SOURCE: Samsung YP T9

Well, another way is you can go to file browser and go to the file you wish to delete. once your at it hold menu until it says delete. press delete and it wil be deleted,

SOURCE: I need help deleting recorded files or songs from Samsung YP-T10

plug it into your usb port on the computer.
go to 'start' 'my computer' click on the new drive it shows, which will be the mp3
open the mp3 player files, click on video , files, music, or whaterver it is you want to delete. The files will show........click on the one you want to delete and hit 'delete' on your keyboard......done.

SOURCE: Samsung YP-T9 Driver

Problem video

SOURCE: i want to reset my samsung yp-t9

Complete Solution - includes fix for Bluetooth.
You will need to execute a number of steps to do this:
1 - obtain a copy of the latest firmware from http://www.samsung.com/uk/support/search/supportSearchResultView.do?group=&group_cd=&type=&type_cd=&subtype=mp3others&subtype_cd=&model_nm=YP-T9&dType=D&vType=L&mType=&model_cd=&menu=download&prd_ia_cd=&disp_nm=YP-T9
or (even better) - go to the international site and download a copy of YP-T9 V1.80.zip
2 - Reset - Power off the yp-t9 using A-B and MENU pressed together - hold down A-B and press the POWER button to enter the low-level format mode - press LEFT LEFT RIGHT RIGHT UP CENTRE DOWN - the yp-t9 will now reformat - power off using A-B and MENU together
3 - reload firmware - Power on normally and connect to PC as a USB drive. Move the two files you just downloaded (MUON.ROM and SYSDATA.BIN) into the root of the USB drive - Safely remove the drive - Power on the yp-t9 and allow it to re-install the firmware

If you want to restore Bluetooth functionality you will also need to perform the following steps:

4 - pop the four rubber plugs out of the back of the unit - with a small phillips screwdriver remove the four screws - insert your fingernail into the seam of the unit on both sides and pop off the back - gently (slowly) remove the battery taking care not to place any strain on the connecting wires - copy dowm the 12-digit number on the label under the battery (starts 0016xxx...) - replace battery, back, screws and plugs.
5 - using text editor create a file with the 12 digits (use upper-case letters where appropriate) followed by <enter> key - save it as BT_MAC_ADDR.TXT
6 - connect the yp-t9 and open it using Right click on Start and Explore - find the yp-t9 and drag a copy of BT_MAC_ADDR.TXT into the SYSTEM folder - Safely remove - power on normally.

Hope this helps
Chris