How to unlock HTC one M7 sim unlock error

I try to unlock M7 and follow the steps by terminal emulator and sim unlock helper.
Trought sim unlock helper I press START and nothing appeands.
By terminal emulator when i write "am start com.redbend.vdmc/com.htc.omadm.test.TestMainActivity" i get the error "Error: Activity class am start com.redbend.vdmc/com.htc.omadm.test.TestMainActivity does not exist"
Any help?