lol sorry 
@ mayong sorry
Of course you need a USB JIG!
Pls flash easily the unfriendly bootloader. Then you will get the normal screen.
Be patient!
After the flash of the JIG-friendly bootloader, take out the battery, then wait 5 sec. and put the battery back.
Now press fast for 10sec. Volume down + Home + Power (all @ same time).
Release them and now press only once again the Volume up button.
Then connect the Phone via USB with the PC and Odin (Desktop).
After a short time, there will be show "added", now flash the unfriendly bootloader. Wait for the end! After this, the phone will auto. reboot.
If there is no screen on the phone, so pls take out the battery, wait and put it back.
Pls note...this guide is only for user, who have forgotten that they do not have USB JIG.

@ mayong sorry
Of course you need a USB JIG!
Pls flash easily the unfriendly bootloader. Then you will get the normal screen.
Be patient!
After the flash of the JIG-friendly bootloader, take out the battery, then wait 5 sec. and put the battery back.
Now press fast for 10sec. Volume down + Home + Power (all @ same time).
Release them and now press only once again the Volume up button.
Then connect the Phone via USB with the PC and Odin (Desktop).
After a short time, there will be show "added", now flash the unfriendly bootloader. Wait for the end! After this, the phone will auto. reboot.
If there is no screen on the phone, so pls take out the battery, wait and put it back.
Pls note...this guide is only for user, who have forgotten that they do not have USB JIG.
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