probleme d installation hboot

Bonjour

pour n importe quelle installation via le bootloader j ai un message d erreur (signatur verify fail,writing fail...)

actuellement j ai cm-NostromoPop-v2.0-20150430-1330-memul d installer.

GETVAR

C:\Fastboot>fastboot getvar all
< waiting for device >
INFOversion: 0.5
INFOversion-bootloader: 3.19.0.0000
INFOversion-baseband: 1.101.1102.19.1017
INFOversion-cpld: None
INFOversion-microp: None
INFOversion-main: 2.19.401.2
INFOversion-misc: PVT SHIP S-ON
INFOserialno:
INFOimei:
INFOimei2: Not Support
INFOmeid: 00000000000000
INFOproduct: mem_ul
INFOplatform: hTCBmsm8226
INFOmodelid: 0P8B20000
INFOcidnum: HTC__203
INFObattery-status: good
INFObattery-voltage: 0mV
INFOpartition-layout: Generic
INFOsecurity: on
INFObuild-mode: SHIP
INFOboot-mode: FASTBOOT
INFOcommitno-bootloader: be7179e5
INFOhbootpreupdate: 11
INFOgencheckpt: 0
all: Done!
finished. total time: 0.021s

merci pour votre aide