Lumia 1520 flash failed Chimera tool

Dear Chimera, reelly need your Hep please.

Flashing file.
Sync V1 supported: true
Async V1 supported: true
Sync V2 supported: true
Async V2 supported: true
Async V3 supported: false
Transfer size:2363392
Buffer size:2359296
Resend support: true
Payload size: 1936850944
EMMC sector size: 61071360
Invalid response from device.
Finished at local time: [09.02.18 19:30:08]
WorkID: 43438868