htc desire c boot loader not unlock

FastBoot mode

Checking Device Battery...

Getting Token hash...

Done

Elapsed: 4 seconds

Sending data to server...

Post failed with error: 0

Elapsed: 2 seconds

Checking Device State...

FastBoot mode

Checking Device Battery...

Getting Token hash...

Done

Elapsed: 6 seconds

Sending data to server...

Post failed with error: 0

Elapsed: 1 second

Checking Device State...

FastBoot mode

Checking Device Battery...

Getting Token hash...

Done

Elapsed: 4 seconds

Sending data to server...

Post failed with error: 0

Elapsed: 1 second

Checking Device State...

FastBoot mode

Changing Device state into RUU Mode

Rebooting Device

Now try again to flash device...

Preparing Flash operation...

Checking Device Battery

Getting OEM Informations...

VERSION: 0.5

VERSION-BOOTLOADER: 1.28.0000

VERSION-BASEBAND: 1.06.98.13M2

VERSION-MAIN: 1.55.720.4

SERIALNO: SH2AZW504280

PRODUCT: GOLFU

PLATFORM: HBOOT-7225A

MID: PL0110000

SECURITY: ON

CID: HTC__038



Erasing cache partition...

File name: openrecovery-twrp-2.6.1.0-golfu.img

Please Wait...

sending 'recovery' (5314 KB)...

Done

writing 'recovery'...

signature checking...

FAILED (remote: 12 signature verify fail)

All Done

Checking Device State...

RUU mode

Rebooting Device into Normal mode

Please Wait...

Done

Elapsed: 15 seconds

Checking Device State...

Device not found

Check USB Debug Option/Cable/USB Driver.

Elapsed: 1 second

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