3G Stuck on Recovery Mode

[Samehada]

I updated my iPhone 3G from 4.1 to 4.2.1 and after the update was like 70% I got error 1015,I tried tiny umbrella but the iPhone turns off an on again in recovery mode.I tried Re downgrading to 4.1 but still the same,1015 and tiny umbrella can't unstuck it.I went to try on an other pc and when I plugged a line like the restoring 1 appeared and filled up fast and got emergency call only,Then tried activating/jailbreaking with redsnow and after the jailbreak was finished I got again the damn recovery mode.What else Can I do?Please,Would really appreciate if someone can help me out of this problem.

Thanks in advance.

[monkeydance]

try fixrecovery, download it from Tiny Umbrella web.

[strayker]

you cannot kicked it out via tinyumbrella if you are on 4.2.1 baseband 6.15.
use redsnow 0.9.6b5 and run it with official firmware 4.2.1 and tick on "just enter DFU only"
after that use itunes and restore using customized firmware 4.2.1
hope it helps!