PLEASE HELP stuck in dfu mode

[ianthony]

to start off my iphone is 3g
Well i decided to do somthing stupid and downgrade iso 4.2.1 to 3.1.3/ on some form:
Downgrade iOS 4.1 to iOS 4.0 / 3.1.3 / 3.1.2 iPhone 4, 3GS, 3G and iPod touch [How to Guide] | Redmond Pie

so i out in dfu mode, downgraded got that error (15xx forgot the last numbers) the fourm said its ok then when i try to use rec boot on the computer it says done but all i see on my phone is a itunes sign and cable.

please help guys

[Simon]

Try using tiny umbrella to kick it out of recovery instead

[ianthony]

links please?

k got a link but now it wont recognize my iphone and niether would itunes any help>]?

[Simon]

The Firmware Umbrella - TinyUmbrella

Next time google

make sure you have the latest itunes. Try the restore again and then use tiny umbrella after you get the 1500 error. make sure you run tiny umbrella as administrator.