This is my first post an I hope I did put it on the right place and I havent found any other post that really matches my problem.
Anyway, I was so happy for being able to bring back stock rom on a rooted SGS2 I9100 who didnt worked proper with its root. In this case, no USB-debugging were necessary.
After this mission I felt ready to try to downgrade the SGS Advance I9070 from stock Jelly Bean to Stock Ginger Bread by mainly following one of all those tutorials about how to do it. And I know its said - enable USB-debugging.
But as I were interupted by my wife just before I were going to proceed, I totally forgot it when I finally went back to my work of downgrading. As I were a bit stressed, I just connected the phone to Odin and slammed the PDA-button like I did with the SGS2. It went smooth all the way through Odin and the green PASS showed up. But when the phone were about to boot up it stuck at the Samsung-logo. Its in a bootloop. After a short time of wondering about what went wrong, it struck my head I forgot to enable USB-debugging. Amen!
So, I forgot debugging while running JB-stock to downgrade to GB-stock. The only thing I can reach now is download-mode except the bootloop Samsung start interface. Its probably occured because I forgot enable debugging, right? And does it mean this device is bricked for real or is there anyway to bring back life?
Best regards // emsoh