Started with YP-K3JAB which is the MTP protocol 4GB version. Firmware was 3.05.

http://www.samsung.com/my/products/a...er/yp_k3qb.asp

By clicking the support link and searching for YP-K3 I found a number of different
versions of YP-K3 players listed. I could not find any difference in the files that were downloaded. YMMV.

User Manual:
http://www.samsung.com/my/support/pr...ZG&filetype=UM

Firmware Version 4.10
http://org.downloadcenter.samsung.com/down...476388&CDCt tType=FM&ModelType=N&ModelName=YP-K3QB&VPath=FM/200712/20071210144103718_YP_K3_4_10_MSC_WA.zip

I first tried the windows EXE upgrade but that did not work.
I then tried the manual upgrade but that did not work.

After a couple of hours of messing around I figured out that I needed to upgrade Windows Media Player
from Version 9 to Version 11. Then things started working.

Then the YP-K3 showed up in windows explorer and I was able to copy the .rom and .img files to
the \DATA\ directory.
Note: I needed to create the DATA directory first.

I jumped directly from Version 3.05 to Version 4.10 of the firmware with no problems.

0. I used WINXP SP2 with WMP11.

1. Plug-in the player (should be detected as an MTP device)
WMP9 will detect the device and will allow download of music and creation of directory but will not work for the upgrade.
WMP11 did work for the upgrade.

2. Format the device with WMP to remove any files on the device and then create \DATA if it does not exist.

3A. Close WMP and open Windows Explorer. You should see the YP-K3 listed under My Computer as a device.

3B. Copy the YPK3.rom and YPK3.img files (4.10) in the \DATA directory of the player. Select the YPK3.IMG file
from the BLUE, LIME, MAESTRO, or RED directory depending on what colour you want the player to use.

4. Disconnect the USB cable and switch on the player by pushing and holding down the slide switch on the right until the player starts.

5. You should get the upgrading firmware screen and then it turns itself off.

6A. Switch the player on again. You now get "no space for DB. delete at least 18mb error".

6B. Plug the USB back into the computer and using Windows Explorer find the device. It should appear as a removable drive. When I clicked on it I got a message saying that the device was not formated and I then formated it as FAT32.

7. Once the device is done formating disconnect the USB cable and
switch on the player.

8. You should get the upgrading firmware screen and then updating the image screen. It then turns itself off.

9. Plug the USB back into the computer and you should now see the player in Windows Explorer.

I hope that this helps and that I was clear about the steps.

It must then be formatted through Windows ( IMPORTANT! FAT32 format , NOT NTFS). After doing this, restart the player.. the player will update and you will get a white screen that looks like you have a disaster on your hands.. but if you once again drag & drop the same three firmware files to the *root* (not into a folder) of the K5 directory, unplug the USB cable and restart.. a final updating will occur and you can then re-load your K5 with music, photos etc..