how to unlock htc desire 510 gsm

pls can someone help with instruction to unlock htc desire 510 cause i cant seem to get the fone done for over 2 days now the said is a gsm brand not sprint Reading information…
Using Fastboot mode…
Reading common information
(bootloader) version: 0.5
(bootloader) version-bootloader:
(bootloader) version-baseband: 01.02.012_U10251_39.08.40922
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main:
(bootloader) version-misc: PVT SHIP S-ON
(bootloader) serialno: CC591Y403757
(bootloader) imei: 353450067424994
(bootloader) imei2: Not Support
(bootloader) meid: 00000000000000
(bootloader) product: a11_ul
(bootloader) platform: hTCBmsm8916
(bootloader) modelid: 0PCV20000
(bootloader) cidnum: VODAP001
(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: 2e41d10f
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
(bootloader) mfg-name: 1001
Execution time is 13(ms)
all: Done!
Reading secure flag information
… (bootloader) secure_flag: 3
Execution time is 7(ms)
Reading CID information
… (bootloader) cid: VODAP001
Execution time is 64(ms)
Reading MEID information
… (bootloader) meid: 00000000000000
Execution time is 5(ms)
Read information completed.