problem repairing V600
 

V600 from AT&T Wireless, 2004
My attempt of manual unlocking has reduced that I can not back flashing or to restore a zone PDS Llogs Smart Cyclone v39 :

Processed 2 codegroups
Connecting to phone ...
Connected to: 'Motorola Flash'
Connected OK
Sending RAM loader ...
ERROR: FLASHCMD read error
Error during post-JUMP commands.
Error while flashing RAM loader, aborting.
ERROR: Flashing failed

Connecting to phone ...
Connected to: 'Motorola Flash'
Connected OK
Bootloader version: 0760
Sending loader to phone ...
Loader sent OK.
Repair PDS ...
ERROR: REPAIR USB bulk write (7)
ERROR: Repair failed

What can I do?