GSM-Forum - JXD 661F_1121 and 661F

I found the working firmware for jxd661F_1121 and jxd661F_0731 (both are same) here
MP3 FIRMWARES, MP4 FIRMWARES, MP5 FIRMWARES, ACTION, SUNPLUS CHIP FIRMWARES - Powered by Discuz!

if you are unable to download the firmware PM me, I will upload the full firmware, I tested the firmware on two players and worked fine. For some jxd players you have to edit userconfig.bin file and change the LCM = 10 (some players LCM have to set 5403B for correct working. if want assistance pm me. I will give good tutorial. I give the link because downloading files from the site costs +1 points for each file. when any one visits the link above will provide me +1 points. So I can download more files and help you.