When i turn my t10 on it says update my rsc file.

Pwoer on upgrade rsc file

Check here :
How to update firmware on your MP3 player

pwoer on upgrade rsc file

when you done the firmware do you also done the *.rsc..normally i do the *.rom and *.rsc files so that it will erase and replace

i can not upgrade rsc file

I would go ahead and do the firmware upgrade from Samsung's website - make sure you enter in your EXACT model # - including the part after the YP-T10. The RSC (resource) files need updating, and I can't think of a better way to do that than to upgrade the firmware. There is a small possibility that you have files on there with expired DRM licenses, but I would try firmware upgrade first.

Look in Prog Files/Samsung/Samsung Media Studio/temp2/firmware - the cab file contains the upgrade files. Copy then across to the T10.

Unplug the T10 and switch back on, it should update the firmware. Switch it back on each time it switches off until the update is complete.

Corrupt DB, try reformat and then firmware upgrade:
http://www.samsung.com/us/support/download/supportDown.do?group=&type=&subtype=&model_nm=YP-T10JAB&language=&cate_type=all&dType=D&mType=FM&vType=R&prd_ia_cd=03040200&disp_nm=YP-T10JAB

after charging battery shows 'please upgrade rsc file' - i can't even turn it on normally (somtimes shows opening screen and it's all,after this a have to reset), and any of ma computers didnt recognise player (only usb device was found)

This drove me crazy, too! The trick is that you have to search the download section of Samsung.com with your very specific model number. You can't just use T10 or T10JAW just because that's the example they used on the website. For example, mine was YP-T10JAUY. Save the zip file to your desktop, then extract the files to your desktop (doesn't matter what folder name as long as you remember where the file are). Next, open a Windows Explorer window by right-clicking the "Start" button and select "Explore". Obviously, your T10 should be connected already. You'll see the T10 on the left-side window. HERE'S THE REAL TRICK: you have to get the T10 files to show up in the RIGHT side window. Click on the T10 to expand the internal folders (still in the left side window), then in the left window click on either "Data" or "Internal Storage"--which one you see will depend on whether you use Windows Media Player 10 or 11. Click on that on the left side and it should open the right side Explorer window to the files in the Data or Internal Storage folder. This is where you have to put the firmware. On the right side.

You can't drag-drop the firmware update files into the T10 in the left-side window. This is NOT clear in the firmware update instructions that you see in the new manual that goes with the new firmware. After you copy the firmware to the T10, you just disconnect from the computer and when you turn it on, it should upgrade the firmware.

Those YouTube "how to upgrade firmware" videos don't describe this...a HUGE oversight. None of the other various supposed how-to explanations said this stuff either. JEEZ! It's not that hard if someone would just explain it correctly! I wasted HOURS trying to figure this out. I hope it helps you.

jkronk