htc one m8 won't boot, stuck in fastboot topic

Hi guys ,, i got this htc one m8 couple of weeks ago , it should be unlocked as i know , i made some changes and upgrades , eventually i'm stuck at fastboot , i can use recovery mode , everything except a working rom , here are the info of the device >> Any ideas ?? i wanted to upgrade for lollipop , also i'm in china , so i'm welling use the lte here .

thanks

(bootloader) version: 0.5
(bootloader) version-bootloader: 3.19.0.0000
(bootloader) version-baseband: 1.25.21331147A1.06G
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 3.11.1700.5
(bootloader) version-misc: PVT SHIP S-OFF
(bootloader) serialno: HT451SF01584
(bootloader) imei: 990004998997542
(bootloader) imei2: Not Support
(bootloader) meid: 99000499899754
(bootloader) product: m8_wlv
(bootloader) platform: hTCBmsm8974
(bootloader) modelid: 0P6B12000
(bootloader) cidnum: BS_US002
(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: 3aa067db
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
all: Done!
finished. total time: 0.018s