yeah, dont change the firmware
these players are a COPY of the ramos T8 player NOT from the same factory so DO NOT use any other firmware
they are all over ebay and all the mp4 shops have them, you cant update firmware
as for the CD dont bother as the contents will be generic, often containig firmware for TOTALLY diff player .. the perils of no brand goods
re firmware moding, what tools are you using, we have a editor here
MP4 Nation Forums • View topic - s:flo and NEW ROCKCHIP (RK27) Theming guide and tools
and a new tool here
MP4 Nation Forums • View topic - Rockmod27: mp4nations own rockchip modding tool by seasprite
rockchip firmware contain debris from other players, you will see images in there that DO NOT and never will get used
also be aware of the old modding tool as they can increase the size of the file and make it too big, the new one i linked does not ad reduces file sizes