Mi5 can't backup, wipe security

I need wipe security, but allways error:
Searching Device ...

Device on Port : [COM5]

Analyzing Please wait ...

HW_ID : 009470E1
BLOCK_ID_S : 7D59ABAF
BLOCK_ID_H : 355D47F912FEA0AF1F46C007C6DC22C4
BLOCK_ID_H : 3544FB9359E30AA7DB5F4734D18FBD74

Sending Loader Please wait...
Writting Loader Successfully!
Reading Partition Table...
Read Partition Table Failed!!
I've downgrade MIUI from 10 to 9, but still the same. Maybe need downgrade android version from 8 to 7? It's possible?