z10 unlock failed

Chimera Mobile Phone Utility version: 22.26.1327 @ 2019-09-06
Direct unlock started.
Phone is in loader mode
Updating software.
Phone is in loader mode
Connected to loader
Querying meminfo
Downloading files
qc8960-10.3.3.2164-nto+armle-v7+signed.bar
10.3.3.2163_qc8960qc8960.factory_sfi.desktop-10.3.3.2163-nto+armle-v7+signed.bar
All files downloaded.
Flashing file
Flashing file
10.3.3.2163_qc8960qc8960.factory_sfi.desktop-10.3.3.2163-nto+armle-v7+signed.bar
Parsing file
Start flashing
Flashing has been finished
Reconnected
Flashing file
qc8960-10.3.3.2164-nto+armle-v7+signed.bar
Parsing file
Start flashing
Flashing has been finished
Waiting for the phone connection.
Turn on your phone and wait for the Chimera logo.
Phone found.
Initializing usb connection.
Testing USB connection.
USB successfully initialized.
Waiting for the usb answer.
This USB connection is closed (send)!
Finished at local time: [09.06.19 12:10:26]
WorkID: 72290517

but credits taken retried a number of times still same thing