accidentely reset all my setting on a jailbroken 3g, I know how daft! Nothing recognised the phone,itunes gave allsorts of errors, tried all options to flash. nothing worked. Tinyumbrella didnt recognise the phone, and everytime i clicked exit recovery it just blacked the screen then came back on in recovery mode! racking my brains on how to fix and afer many hours this is how I did: plugged in iphone, opened tinyumbrella, unchecked everything in the advacned tab and then clicked exit recovery, waited a minute and then just closed tinyumbrella. phone showed the progress bar for a minute and then. . bingo phone now out of recovery loop. tinyumbrella now recognies the phone and giveds me all the model/BB info. Hope his helps.