How to save my IPhone 4 from being through the washing machine?

I noticed a thumping noise inside the washing machine than I went to go get my phone and it was not there and than I ran to the washing machine because I was curious of what that sound was and I dug around to find my iPhone.
I'm pretty sure the Phone was in there for about 15-20 minutes and I ws wondering is there any hope of recovering it?

How to unlock iPhone 3G on 2013 firmware?

My main question is: which redsn0w or other software do I use to unlock the 3g? The 3g has the most recent firmware on it (4.2.1/8c148). Although its giving me a usb communication problem prompt when I run it through redsn0w. I'm not sure if this is because of the firmware update or due to the software.