Htc 820 Error Al Flasear, alguna ayuda Opciones

[liberomovil]

buenas ,tengo un htc 820 y no puedo flasearlo,me da error,el quipo enciende pero no termina de arrancar,os paso el log de la xtc2clip:


Reading information...
Using Fastboot mode...
Reading common information
(bootloader) version: 0.5
(bootloader) version-bootloader: 3.19.0.0000
(bootloader) version-baseband: 01.01.010_U10305041_08.01.50512
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 3.17.75.3
(bootloader) version-misc: PVT SHIP S-OFF
(bootloader) serialno: HT55YYC02233
(bootloader) imei: 355721061321446
(bootloader) imei2: Not Support
(bootloader) meid: 00000000000000
(bootloader) product: a51_ul
(bootloader) platform: hTCBmsm8939
(bootloader) modelid: 0PFJ40000
(bootloader) cidnum: ORANG309
(bootloader) battery-status: good
(bootloader) battery-voltage: 0mV
(bootloader) partition-layout: Generic
(bootloader) security: off
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: 8cf72c78
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
(bootloader) mfg-name: 0001
all: Done!
Execution time is 31(ms)
Reading secure flag information
... (bootloader) secure_flag: 0
OKAY
Execution time is 78(ms)
Reading CID information
Reading MEID information
... (bootloader) meid: 00000000000000
OKAY
Execution time is 62(ms)
Read information completed.
Phone DISconnected

y cuando le doy a flash me tira este erro:
Starting flash process...
target rom version: 3.17.75.3
found large-zip header, file count: 8
processing file 1/8...
sending 'zip' (49306 KB)...
OKAY [ 3.859s]
writing 'zip'...
(bootloader) rom parsing start ...
(bootloader) rom parsing finish ...
FAILED (remote: not allowed)
finished. total time: 3.984s

Fichero(s) Adjunto(s)

 htc.jpg... Usted aun no cumple los requisitos para descargar archivos. CLICK para mas INFO ( 78.31k ) Número de descargas: 0
 htc2.jpg... Usted aun no cumple los requisitos para descargar archivos. CLICK para mas INFO ( 825.68k ) Número de descargas: 0