wiko rainbow mtk 6582 flashing error

hone detected…Please wait
Sending DA agent, please wait…
BaseBand CPU :MT6582_S01
BaseBand CPU Secure Version : FF
BaseBand CPU Bootloader Version : 01
—————————————————-
INT RAM: 128 KB SDRAM
EXT RAM: 1 GB DRAM
—————————————————-
EMMC: (28Gb+8192Mb) HYNIX 0x483447316404
EMMC FW VERSION: 86:00:00:00:00:00:00:00
EMMC CID: 90014A48344731 : 000000000000000000
EMMC UA SIZE: 0xe7000000
BOOT STYLE: EMMC BOOT
FULL LENGTH: 0xe7600000 [3.615 GB]
Status: USB_HIGH_SPEED
Not need to swith to high speed port, continue with this settings.
Warning, flashing preloader disabled!
If you change android version, preloader must be flashed.
Flash EMMC Algo Start.
Preloader backup already exist, skip saving.
Starting flash.
Error: ??

any help

phone before was restarting now completly dead