Samsung YP-U3 MP3 player, when turning it On' its going into full volume & no buttons is worling after that. The music plays in full volume.

Probably the display is off. Go to Settings and change 'Display Off' setting to 'Display On'. I have attached a link to a PCMag review of your player to help you.

Samsung YP U3

Go to this website and download Multi Media Studio.
Install the program on your computer and open it, then plug in your YP-U3 and it should recognize your player and then you can download music, pictures,etc to your player.
This is a Free answer, Please rate me
http://www.samsung.com/ca/support/detail/supportPrdDetail.do?menu=SP01&prd_ia_cd=03040200&prd_mdl_cd=YP-U3JQB%2FXAC&prd_mdl_name=YP-U3JQB&prd_ia_sub_class_cd=P

Mine does this too, and I discovered that if you hold the top two buttons (the on/off and the one beside that), while sliding the hold bar the unit will shut off. Then you can turn it on again and 50/50 it won't be rewinding anymore.

At least this way you don't have to take a trip to the computer to plug it in.

LCD broken,

Here you go just read,

http://www.samsung.com/us/support/search/supportSearchResultView.do?group=&group_cd=&type=&type_cd=&subtype=&subtype_cd=&model_nm=YP-U3&dType=D&mType=&model_cd=&menu=download&prd_ia_cd=&disp_nm=YP-U3&isEqualsY=#

But usually its not needed.

THIS FOR SURE HELP!!!!!!!Hi...I find the answer...Push and hold rec button and button for holding...And it will start..if your mp3 (a samsung yp-u3 mp3) says log val=0x10008018 or something, click and hold the record button and once it begins to record, press the back arrow/button (symbol in the top right corner). your mp3 should work (play music and such) now. to fix your mp3 and get rid of that log val message, you need to go to settings, then system, then format. format your mp3. unfortunately this will delete all your songs and files on the mp3, but the mp3 player should be fixed and the log val message wont appear anymore.

hope this helped....

you need to upgrade your usb port go on the samsung website it will tell u how

RESET THE PLAYER TO SEE, BUT THIS PLAYER MIGHT BE TOAST.

THIS FOR SURE HELP!!!!!!!Hi...I find the answer...Push and hold rec button and button for holding...And it will start..if your mp3 (a samsung yp-u3 mp3) says log val=0x10008018 or something, click and hold the record button and once it begins to record, press the back arrow/button (symbol in the top right corner). your mp3 should work (play music and such) now. to fix your mp3 and get rid of that log val message, you need to go to settings, then system, then format. format your mp3. unfortunately this will delete all your songs and files on the mp3, but the mp3 player should be fixed and the log val message wont appear anymore.

hope this helped..

u don`t need a driver ... the samsung yp-u3 is not a regular mass storage drive u must open it with this program http://www.samsung.com/sg/support/download/supportDown.do?group=mp3audiovideo&type=mp3player&subtype=mp3player&model_nm=YP-U3ZB&language=&cate_type=all&dType=D&mType=SW&vType=R&prd_ia_cd=03040200&acc_ia_fl=&disp_nm=YP-U3 download from here