[master mobiles]

<ID:0/024> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> AP_R720XXU2FSD1_usr.tar.md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/024> Odin v.3 engine (ID:24)..
<ID:0/024> File analysis..
<ID:0/024> SetupConnection..
<ID:0/024> Initialzation..
<ID:0/024> Get PIT for mapping..
<ID:0/024> Firmware update start..
<ID:0/024> SingleDownload.
<ID:0/024> ramdisk-recovery.img
<ID:0/024> NAND Write Start!!
<ID:0/024> FAIL!
<ID:0/024>
<ID:0/024> Complete(Write) operation failed.


i tried different firmware's with usb cable connected with testpoints but no luck