Can't write any files at MP4 player
Hello, a friend of mine just lend me a Techsonic 1815F+ MP4, 1 Gb. I can't copy music files to it (either from Windows itself, Windows Media Player, or the Media Mangare that comes on the CD provided in the box), there is a "file not found" error and the player disconnects from the PC.
I've already tried the remove Memory Hack guide (but it's not a capacity issue,I cheked that), formatted it several times (it only made it worst, now there are no files at all). However the firmware seems to be fine, I can still access the player's menus. Can you guys help me write back the files? Thanks.
EDIT: I tried copy .txt and .doc files, just to see it they get into the player, and they do. But still can't copy MP3 or JPG.
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