Error flash e470

Welcome to Octoplus/Octopus Box LG Software version 2.3.7
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Checking data…OK
Platform: LG MTK
Selected port: COM10
Selected baudrate: 921600
Selected model: E470F
Selected USB connection type
Please, disconnect battery and connect cable…OK
Phone found.
CPU name: MT6575
CPU revision: 8A00.CB00.E201.0000
Setting power state…OK
Prepairing loader…OK
Sending loader…OK
Synchronizing with loader…
Loader version: 3.2.132
Detecting flash chip…OK
Detecting EMMC flash chip…OK
Reading info…OK
Opening "LGE470fAT-00-V10a-724-XXX-MAY-30-2013+0.oct"…
Writing Firmware…
Formating filesystem…Failed!Failed!Failed!OK
Unlocking Bootloader…Failed!
Performed by 2.3.7 software version.