Htc 10 bootloop

Hi
i have a Htc 10 restart in logo
phone only restart in logo and with vol+ vol- only go to the bootloader mode.
phone not going to download mode and recovery mode. only bootloader mode

info with xtc2


Reading information...
Using Fastboot mode...
Reading common information
(bootloader) version:0.5
(bootloader) ramdump-mode:false
(bootloader) variant:Surf eMMC
(bootloader) boot-mode:FASTBOOT
(bootloader) secure:yes
(bootloader) version-baseband:
(bootloader) version-bootloader:
(bootloader) max-download-size: 0x20000000
(bootloader) partition-type:cache:ext4
(bootloader) partition-size:cache: 0xe000000
(bootloader) partition-type:userdata:ext4
(bootloader) partition-size:userdata: 0x61e000000
(bootloader) partition-type:system:ext4
(bootloader) partition-size:system: 0xef000000
(bootloader) serialno:FA71DBN00509
all:
Execution time is 1(s)
Reading CID information
Reading MEID information
... FAILunknown command
FAILED (remote: unknown command)
Execution time is 31(ms)
Reading IMEI1 information
... FAILunknown command
FAILED (remote: unknown command)
Execution time is 46(ms)
Reading IMEI2 information
... FAILunknown command
FAILED (remote: unknown command)
Execution time is 31(ms)
Reading secure flag information
... (bootloader) read secure flag: 3
OKAY
Execution time is 46(ms)
Reading serial number information
... FAILunknown command
FAILED (remote: unknown command)
Execution time is 15(ms)
Read information completed.


xtc not showing info in model id cid imei line info .....

please guide me this Hw problem or software?
phone is Locked and S ON and not going to download mode for Unlock and S off and...

thanks Xtc2 Team.