[T-Mobile Samsung Galaxy S II SGH-T989] Psychotic-Cerebellum:
---First off, let me preface this by acknowledging the fact that, yes, I am indeed a noob. And I'm sure some of the info I'm going to put in here probably isn't needed, but as I said, I am a noob, and thus am not entirely sure what is relevant and what is not. I also apologize if some of what I say and/or what I did doesn't make sense and/or is idiotic, but again, noob. That being said I don't have any techie friends and never really had a nack for this kind of stuff, but hey gotta start somewhere right? So, that being said, here's my dilemma:

This all started last week when I was downloading the CyanogenMod Nightlies *Rom. The download started and was going along just fine when my phone suddenly turned off and starting vibrating and then wouldn't turn back on. Everything I would press power it would just start vibrating in regular one second intervals over and over. Finally I remove the battery. It turns back on fine. Download resumes. And... Bam! Happens again. This time I try the same remove to no avail and about 15 minutes later I'm thinking that this is it for my phone when it finally reboots. So I decide, alright, lemme just download this Rom and try to flash it, or at the very least just restore the phone and hope this is a software issue. So I had also just downloaded Rom Manager and was going into recovery via Clockworkmod recovery as the instructions prompted me to in the CyanogenMod tutorial. Now every other time I have installed a new Rom I just manually boot into recovery as the phone turns on. This time I boot into the Clockworkmod recovery though cuz I wanna follow the directions to the "T" and I proceed to selecting the factory reset and it wipes the data and freezes when wiping the cache. So I'm sitting there like, "Oh s**t, what do I do now?" I let it sit for fifteen minutes hoping it will magically unfreeze and all will be right in the world, but it doesn't and I reset the phone via the power button. Then it boots up and tells ne there a issue with my custom OS and I'm not really are what to do here. So, i reboot it and it acts like the reset was successful and prompts me to set up my phone like I just flashed the Jedi Mind Trick Rom I've been using. So I tried again, and same thing. Got stuck on clearing the cache. Luckily it lets me set up the phone again after I interrupt the frozen factory reset. This time I try to boot into recovery manually, pressing the hard keys, and all the phone does is restart. So I try again. And again. And again to no avail. I look up the key sequence thinking I may have forgotten it and am doing it wrong, but after trying every combo I can find online, it still doesn't work. So I give up and go into recovery via clockworkmod and restore my phone to my very first nandroid backup I made before I ever started messing with custom roms, and everything goes fine it seems until it gets to a command about something revolving cache and it freezes again! I eventually have to reset it and it gets stuck in a loop where the Samsung logo comes up, it makes a loud annoying beeping noise for a few seconds before it turns off and does it all over again. Now I'm sure I've bricked my phone. I take out the battery, wait, put it back in, but still nothing. I do this a few more times, wait and hour, and it finally boots up. So now I try to go into recovery manually again, but still just get the phone resetting. I try to go uninstall clockworkmod and go into recovery via Rom toolbox pro, but I still get the clockworkmod recovery rather than the phone's normal recovery I used to be able to get to before I ever installed clockworkmod. So I'm stuck here. I know that's a lot of info, but I didn't want to leave anything out incase it was important. Thanks in advance for any advice and/or directions you can give me. *

P.S. I read in someone's post here that the first issue of the phone turning off and vibrating could be the result of a bad power sensor. So I wanted to add that since this two mysterious restarts and vibrations, nothing like that has happened in the... Approximately 5 days since (for whatever that's worth). *

Thanks again, and I apologize for any ignorance you have encountered while trying to read this post.