ocnuhl - FAILPERMISSION DENY (DENY)

hello

got this device:

Reading information...
Using Fastboot mode...
Reading common information
(bootloader) kernel: lk
(bootloader) product: htc_ocnuhl
(bootloader) version: 1.0
(bootloader) max-download-size: 1560800000
(bootloader) serialno: FAxxxxxxxxxxx
(bootloader) slot-count: 0
(bootloader) current-slot:
(bootloader) imei: 356333333333333
(bootloader) version-main: 2.33.401.10
(bootloader) boot-mode: download
(bootloader) version-baseband: 8998-002772-1711161638
(bootloader) version-bootloader: 1.0.0.0000
(bootloader) mid: 2PZC10000
(bootloader) cid: HTC__002
all:
Execution time is 13(ms)
Reading CID information
... (bootloader) cid: HTC__002
OKAY
Execution time is 15(ms)
Reading MEID information
... (bootloader) meid:
OKAY
Execution time is 13(ms)
Reading IMEI1 information
... (bootloader) imei: 3563333333333
OKAY
Execution time is 10(ms)
Reading IMEI2 information
... (bootloader) imei2:
OKAY
Execution time is 10(ms)
Reading secure flag information
... (bootloader) Device security level S-ON, reboot count 0
OKAY
Execution time is 50(ms)
Reading serial number information
... (bootloader) Device Serial No. is FAxxxxxxxx
OKAY
Execution time is 9(ms)
Read information completed.





wich is a demo unit. i need to S-OFF, S-CID and flash it fresh.

tried to S-OFF, but got this error :

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
Execution time is 8(ms)
Waiting for the phone to reboot...
Phone DISconnected
Phone connected [FA75R1804461] *** Fastboot mode
Phone connected
Sending oem writesecureflag 0
... (bootloader) HTC KEY CARD VERSION: 7
FAILPERMISSION DENY (DENY)
FAILED (remote: PERMISSION DENY (DENY))
Execution time is 12(ms)
Operation completed!
Releasing adapter.
Request completed



OEM is unlock

meaning what ?

any ideea ?

thanks