Error to flash samsung GT-C3313T

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Platform: Samsung Infineon
Selected model: GT-C3313T
Selected port: USB
Phone must be OFF, and the battery must be fully charged
Please, connect USB cable and reconnect battery.
Connecting...
Phone found.
Sending loaders...
Sending preloader...
Preloader send successfully
Sending mainloader...
Mainloader send successfully
Writing firmware...
Erasing Full Flash...
Performed by 2.6.9 Software version.

File firmware from support octoplus