Hi,All of a sudden, (after having run out of battery and then using a mobile battery) my iPad 1 with 5.01 JB gets stuck on the Apple Logo and can't start up anymore.Reading online, it seems that the recommendation is to enter DFU mode and then do a restore. I tried to do that and restore using the ipsw for 5.01 but an error message appears; I reckon I can't do this anymore now that Apple is on 5.1.1? Or am I wrong?Anyhow, can someone let me know the steps for restoration bearing in mind the most important thing to me is to keep existing data intact. i should have a backup file quite recently but it is on 5.0.1.My questions are.Do I DFU, then Restore, then JB then Restore from Backup? Or DFU, then Restore then Restore from Backup then JB? Or?Can a 5.01 backup work if my iPad gets updated to 5.1.1?Any help in the exact steps for restoration, again bearing in mind the main importance of data preservation, will be deeply appreciated.Thanks!