I have been given a 32gb us model which is stuck in bootloader i have tried everything and all fails.

Unable to lock the boot loader to try flash RUU
Is it worth trying anything else?
Code:
fastboot getvar all
Code:
C:\Program Files (x86)\HTC\HTC Sync Manager\HTC Sync>fastboot getvar all
(bootloader) version: 0.5
(bootloader) version-bootloader: 3.19.0.0000
(bootloader) version-baseband: INVALID_VER_INFO
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 6.12.401.4
(bootloader) version-misc: PVT SHIP S-ON
(bootloader) serialno: HT43SWM00546
(bootloader) imei: 35
(bootloader) imei2: Not Support
(bootloader) meid: 00000000000000
(bootloader) product: m8_ul_ca
(bootloader) platform: hTCBmsm8974
(bootloader) modelid: 0P6B10000
(bootloader) cidnum: 11111111
(bootloader) battery-status: good
(bootloader) battery-voltage: 0mV
(bootloader) partition-layout: Generic
(bootloader) security: on
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: 76df2b54
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
all: Done!
finished. total time: -0.000s
htc_fastboot finished. total time: 0.047s
Code:
fastboot oem lock
Code:
C:\Program Files (x86)\HTC\HTC Sync Manager\HTC Sync>fastboot oem lock
...
(bootloader) [PGFS] partition_update_pgfs: pg1fs_security
(bootloader) Error: Command never completed
(bootloader) Error: Command timeout error
(bootloader) Error: Command completed with errors
(bootloader) Failed Reading block @ 2082
(bootloader) [SD_ERR] sd_read_sector: read sector failed (2082 2)
(bootloader) [PG_ERROR] htc_pg_hdr_get(118):
(bootloader) sd_read_sector error
(bootloader) [PG_ERROR] htc_pg_part_hdr_get(170):
(bootloader) htc_pg_hdr_get failed
(bootloader) TZ_HTC_SVC_ENC ret = 0
(bootloader) [PGFS] partition_update_pgfs: pg2fs_sec_recovery
(bootloader) Error: Command never completed
(bootloader) Error: Command timeout error
(bootloader) Error: Command completed with errors
(bootloader) Failed Reading block @ 262656
(bootloader) [SD_ERR] sd_read_sector: read sector failed (262656 2)
(bootloader) [PG_ERROR] htc_pg_hdr_get(118):
(bootloader) sd_read_sector error
(bootloader) [PG_ERROR] htc_pg_part_hdr_get(170):
(bootloader) htc_pg_hdr_get failed
(bootloader) Update pg2fs_sec_recovery fail (-1)
(bootloader) Lock successfully...
(bootloader) deinit_lcd
(bootloader) mipi display off
(bootloader) mdp_clock_off
(bootloader) turn off fd8c2308 failed 1 times. Try again...
(bootloader) disable_mmss_clk done
(bootloader) pll1_disable done
(bootloader) TZ_HTC_SVC_DISABLE ret = -1610744452 (0x9FFDFD7C)
(bootloader) [CRITICAL] SPMI write command failure: cmd_id =
0, error
(bootloader) = 4
(bootloader) [CRITICAL] SPMI write command failure: cmd_id =
0, error
(bootloader) = 4
(bootloader) [ERR] Cannot halt SPMI arbiter!!
(bootloader) [INFO] Rebooting device
FAILED (status read failed (Too many links))
finished. total time: 11.170s
htc_fastboot finished. total time: 11.232s