[Q] Bootloader unlock
Hello community!
I tried to unlock bootloader on my mini pro, unsuccessfully, of course

Now I have some questions, just to make things clearer.
Followed instructions from guide on this forum.
USB debugging mode is enabled. Here is log:
process requires standard 2.x android firmware.
Press any key to continue . . .
Getting ROOT rights.
* daemon not running. starting it now *
* daemon started successfully *
670 KB/s (585731 bytes in 0.852s)
error: protocol fault (no status)
Waiting ...
Removing NAND MPU restrictions via SEMC backdoor. Permanent. Require ROOT rights
.
110 KB/s (3087 bytes in 0.027s)
- exec '/system/bin/sh' failed: No such file or directory (2) -
- exec '/system/bin/sh' failed: No such file or directory (2) -
- exec '/system/bin/sh' failed: No such file or directory (2) -
Waiting ...
Getting ROOT rights.
- exec '/system/bin/sh' failed: No such file or directory (2) -
Waiting ...
Writing patched semcboot. Two step process
First, we need get access to semcboot area
474 KB/s (8064 bytes in 0.016s)
- exec '/system/bin/sh' failed: No such file or directory (2) -
- exec '/system/bin/sh' failed: No such file or directory (2) -
Second, we need to write semcboot

546 KB/s (596916 bytes in 1.066s)
- exec '/system/bin/sh' failed: No such file or directory (2) -
- exec '/system/bin/sh' failed: No such file or directory (2) -
Press any key to continue . . .
I suppose my mistake was trying to unlock on non-srandard ROM (MiniCM7pro v10).
I do not understand role of PC Companion in whole process. Is it used just to check connection between phone and PC? Do I have to really connect to PC Companion enabling USB Storage?
Thanx!