htc one m8 dual sim update 50% problem

hello
i have one m8 duall sim 4.4.2
unlocked bootloader

i want to update to lollipop after download ota update phone restart to enter recovery stock to complat update but at 50 % stoped and restart phone s-on

please
help
fastboot getvar all
C:\android>cd c:\Android

C:\android>fastboot getvar cid
< waiting for device >
cid: HTC__J15
finished. total time: 0.001s

C:\android>fastboot getvar all
INFOversion: 0.5
INFOversion-bootloader: 3.19.0.0000
INFOversion-baseband: 1.22.30306251.27G
INFOversion-cpld: None
INFOversion-microp: None
INFOversion-main: 3.33.401.6
INFOversion-misc: PVT SHIP S-ON
INFOserialno: HT46JWM02828
INFOimei:
INFOimei2:
INFOmeid: 00000000000000
INFOproduct: m8_dugl
INFOplatform: hTCBmsm8974
INFOmodelid: 0P6B64000
INFOcidnum: HTC__J15
INFObattery-status: good
INFObattery-voltage: 0mV
INFOpartition-layout: Generic
INFOsecurity: on
INFObuild-mode: SHIP
INFOboot-mode: FASTBOOT
INFOcommitno-bootloader: 4c3fbd70
INFOhbootpreupdate: 11
INFOgencheckpt: 0
all: Done!
finished. total time: 0.012s

is there any ruu.exe
thanx advance

regards

C:\android>^A