a9s what am i doing wrong????

1. Checking phone connectivity.......
Phone connection confirmed!
HTC KEY CARD VERSION: 7
2. Checking Server connectivity...
Server connection confirmed!
3. Checking PowerAdapter connectivity...
Process started
PowerAdapter connected, processing request to adapter...
Starting operation...
Sending oem reboot-download
... OKAY
finished. total time: 0.003s
htc_fastboot finished
Waiting for the phone to reboot...
Phone DISconnected
Phone connected [FA6AVBY00202] *** Fastboot mode
Phone connected
Building connection
Initiating communication
Building connection
Data exchange sequence.
Request sent, waiting for reply ... 2 second(s)
Processing...
Data exchange completed
Data exchange sequence.....
Initiating communication
Building connection
Data exchange sequence.
Request sent, waiting for reply ... 1 second
Processing...
Data exchange completed
Data exchange sequence....
Sending oem writesecureflag 0
...
Initiating communication
Building connection
Data exchange sequence.
Request sent, waiting for reply ... 1 second
Processing...
Data exchange completed
Data exchange sequence.....(bootloader) HTC KEY CARD VERSION: 7
Initiating communication
Building connection
Data exchange sequence.
Request sent, waiting for reply ... 1 second
Processing...
Data exchange completed
Data exchange sequence.
FAILPERMISSION DENY (SIGNATURE_FAIL)
FAILED (remote: PERMISSION DENY (SIGNATURE_FAIL))
finished. total time: 15.011s
htc_fastboot finished
Initiating communication
Operation completed!
Releasing adapter.
Request completed