Alcatel Pixi 4.5 (5017A) unlock problem


Using library Brom_DLL_v7.1522.2
Searching phone in normal mode;
[connect the phone powered off to the usb cable]
Phone detected (PreLoader USB VCOM Port (COM9))
Preparing to start flash mode;
Preparing to open COM9
ERROR: Timeout waiting !
ERROR: BOOT_PHONE;

what is the problem ?
can u help me
Br,
nishue.