unable to unlock bootloader.i am having test device which is s-off and have super cid

hello everyone

first i tried to unlock bootloader with htc dev but didnt succed.here is my key.

<<<< Identifier Token Start >>>>
365D16D4E5F0F2CD23154EE13C476CE2
6CF2A818F35DAA0499EAA5A4982CCCC1
5610AA7550280BDFB911DEDF00464530
E2553B7EFA9D78464BFA415159B78F86
F0662AFCCC012489F0DBEA0E6855404B
7EE8A8060F515C92EA34BE377809A8B5
B3B1A1AA8E9669C75EABF571D2BD630E
79A4EDDE4155C507B4A51DDDDD3C99D3
79F4E7B2E0F2242105FE7DAD37A5507D
6CE6A083DF8DA0F99D776A97F17736AA
8F74DF3B9B507973671477F01CEC4CFB
0655FE83C2A966F532F1A697E3061E25
848EE903EC39C170FB1E6DC44072309A
DB5C863E393F749E2EFD57098372123E
18B802ADD730FF9B5C50C2557F8A360C
49FEDAE2F8233BB5E7136600D2A19F87
<<<<< Identifier Token End >>>>>

after that i tried to unlock bootloader via fastboot ad commands but didnt succed.

it shows following message in a cmd.


C:\Users\shraddhadeep\Downloads\OneXRoot>echo -ne '\x00\x00\x00\x00' | dd of=/de
v/block/mmcblk0p2 bs=1 seek=33796
'dd' is not recognized as an internal or external command,
operable program or batch file.

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