Hi, I have a 1st generation ipod touch running firmware 3.1.2. And i succesfully jail broke it and installed cydia using blackra1n. When i installed cydia it asked me to upgrade it so i downloaded all of the upgrades. Then i downloaded winterboard. After it finished installing it asked me to reboot my ipod and it showed a button that said reboot. I clicked the button and my ipod started to reboot. I left it alone and came back later and the ipod was either off or had a black screen. so i held down the sleep/wake button for a few seconds and it showed the apple screen. then it went blank. It will do this everytime i atttempt to boot up. I tried holding down the buttons to put it in DFU mode but it doesnt work and itunes and blackra1n wont recognize probably because it wont even boot up completely. Does anyone know what i should do?