Ok here is how i did it on another amiko , so i presume its the same method ,
reset your box to " Default Value "
Now load your server line ( gift ) with u.s.b with a hsdata.cfg file ( you could try to enter your line manually at this stage also , although your line will work , it might not remove the password lock ,
that loading your line with the " hsdata.cfg file method should remove the 8 digit password lock ...
the first part of the hsdata.cfg file should look like this below .
cfg~0~0~00000000
This will remove password from your box , when the hsdata.cfg file is loaded onto your box .
Finally , load your new firmware + channel list select " all bootloader + channel list " after you have installed your line ..
Now you should be good to go .
hope this helps ...