iPhone 3G - 3.0 Won't power up.

[bruint]

Alright, so my iPhone 3G, the other day just decided it doesn't feel like turning on.
I've had a bit of experience in looking around so I opened it up and check all the connection were good/clean then put it back together. Anyway, nothing for days and days.
I decide to plug it into my (Logitech) Alarm Clock and it makes a sort of "buzzing/clicking" sound for a while, I assume it's connecting to something but not getting any audio, the Alarm clock also realises that the phone is there because it allows me to select "iPod" as the input, its worked on this Alarm Clock for a long time.

Anyway, cut to about a day and a half after that (constantly plugged into alarm). The phone miraculously boots up but doesn't quite "boot" all the way. It gets to the "flat battery, CHAARRRGGEE MEEEE" screen and won't charge, doesn't even realise it can be charging. So, I unplug it, and bam, there it goes again, plug it back in, nothing but the clicking...

I'd try a hard reset but the power button/entire mechanism is broke, therefor, no DFU mode or hard reset. It's currently sitting plugged into our Windows 7 Desktop and I'll leave it there in the hope that it switches on again and hopefully the computer recognises it so I can restore. The computer doesn't even recognise it's plugged in right now, nor does my mac.

Any help is appreciated. Think I might need to replace that power button mechanism at some point =/

Thanks again.

Used system_profiler SPUSBDataType:

USB Bus:

Host Controller Location: Built-in USB
Host Controller Driver: AppleUSBOHCI
PCI Device ID: 0x0aa5
PCI Revision ID: 0x00b1
PCI Vendor ID: 0x10de
Bus Number: 0x04

CTE-650:

Product ID: 0x0018
Vendor ID: 0x056a (WACOM Co., Ltd.)
Version: 1.16
Speed: Up to 12 Mb/sec
Manufacturer: Wacom Co.,Ltd.
Location ID: 0x04100000
Current Available (mA): 500
Current Required (mA): 80

Apple Internal Keyboard / Trackpad:

Product ID: 0x0236
Vendor ID: 0x05ac (Apple Inc.)
Version: 0.77
Speed: Up to 12 Mb/sec
Manufacturer: Apple, Inc.
Location ID: 0x04600000
Current Available (mA): 500
Current Required (mA): 40

IR Receiver:

Product ID: 0x8242
Vendor ID: 0x05ac (Apple Inc.)
Version: 0.16
Speed: Up to 1.5 Mb/sec
Manufacturer: Apple Computer, Inc.
Location ID: 0x04500000
Current Available (mA): 500
Current Required (mA): 100

aka: nothing's showing up at all haha.