3GS 3.1.2 JB - constant crashing, stuck at boot logo

Ever since I upgraded to 3.1.2 via Pwnage 3.1.4, the phone has been constantly crashing since the 1st time I JB'd at this firmware, it's gotten stuck at the pineapple at reboot forcing me to do a full restore at least 3 times on the iPhone. I've pwn'd previous versions of the FW.

Anyone else experiencing this? I only have SBSettings, GV Mobile, iRealSMS & Unltrasn0w installed. Ultrasn0w is just in prep for my trip next month and I"m on AT&T. Any ideas on what's causing this? Have I JB'd my phone too many times? Is it possible to corrupt the hardware?

update:
Got forced into DFU and now in restore but now constantly getting error 1600. Help?

And now...iTunes can't even recognize the phone. It just sits at the pineapple boot logo. I've tried cycling it, recovery technique, DFU, nothing is working now. Incredibly frustrating.

Back in DFU mode but still getting error 1600.

Anyone? I really don't want to have to go to stock 3.1.2. I'm leaving for europe in a few weeks and really can't afford to not have my iphone or to pay for all that roaming.

*SIGH*

dhlizard said:

Try putting the phone into recovery mode and using the same custom restore IPSW you used the first time (as long as you know you built it correctly or got the correct one) Maybe it's the IPSW that is causing the crashes ?

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I can't get into recovery mode any more, just DFU at this point. Still error 1600. The ipsw was correctly built and rebuilt. The activate box was *not* checked. I don't know what to do.

dhlizard said:

Have you plugged it in and tried it?

http://www.iclarified.com/entry/index.php?enid=367

There are more issues than that box. If you installed Cydia and Icy both, that can cause issues. Only install Cydia, OhenSSH and Open SSL, nothing else

Choose no when asked if phone has been pwned before.

Good Luck.

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I tried everything I could find online. I never install Icy, only Cydia. I've never had a problem that I couldn't fix before.

Sadly...I had no choice but to update to stock 3.1.2 w/ baseband 5.11.07 =..( and now won't be able to use it when I travel overseas in a few weeks. Completely. Bummed.