Hello s1fw!
Pleas load two old firmware from China
Www.s1mp3.net to en.s1mp3.net download
MP-693C(CM60009ACT6-03AL-5键)-FM.fw
ftp://s1fw:s1fw@218.97.194.16:2008/%...C%29%2DFM%2Efw
MP-763C-SL V1.1(CM60009ACT6-03AL-678键)-FM.fw
ftp://s1fw:s1fw@218.97.194.16:2008/%...C%29%2DFM%2Efw