You're not going to be able to replicate the same brushed aluminum look that it had when it left the factory. It's strongly recommended that you don't try to repair any scratches or defects with the casing, as you'll only get an uneven finish. Since you've already sanded the area where it was dropped, the only way to achieve an even finish would be to sand/polish the entire device to get rid of the texture on the rest of the device. Of course this would result in a flat finish, and not the brushed aluminum you started off with. You'd wanna mask off the Apple logo, as not to destroy the mirrored finish, if you were to try that method. Polished iPhone 5
I have to ask, but have you tried power cycling the device? Simply hold the power button for a few seconds, then slide your finger across the top. Since your screen is white, you may not be able to see that slider, so you can also reset the device by holding down the home + power buttons simultaneously for a few seconds. If that doesn't resolve your issue, try restoring the device via iTunes. See the article below for more info. Restoring iOS Software
Did you use the iFixit tutorial for swapping out the power supply? Back when I owned a Power Mac, I had to change the power supply, and all I had to do was get it out of the case, and replace it. I didn't have to deal with any software in order to get it to work. Have you tried going through the tutorial backwards again to make sure you've got everything plugged in and set back in place properly? iFixit Power Mac Power Supply Tutorial Also try referring to Apple's help page regarding the status of its LEDs. Diagnostics for Mac Pro LEDs
Have you tried contacting HTC directly? I'm sure if you could prove ownership of the device, and if they have the technology to retrieve the data off the locked phone, they'd be your best bet. Then again, they could be of little or no help, but I think it's worth trying if you haven't already. HTC Hero Support Page There are contact options on the upper right portion of the page. Good luck! P.S. You could always try to get in touch with the N.S.A. I hear they're pretty good at getting data off peoples phones. Heck they might even already have all your files stowed away on their servers.
I don't believe posting this question multiple times on the same forum will result in getting answers any faster. I see you've asked the same question five separate times on iFixit. Add comments if you'd like to update your posts with further information, don't just start a new question.
The iMac is going to require fans of some sort for the processor, no matter what you do. The reality is there is no such thing as a silent fan. The only other way to cool the processor, is through liquid cooling, but there are no liquid cooled options for iMac's at this current point in time. There are programs that allow you to control each individual fans RPM, which may help, but there is still definitely going to be some noise. Because of your condition, the only real solution I could see working, is purchasing a Mac Mini and placing it somewhere as far away as possible from your ears. Most monitors don't contain fans, or any other components that produce noise. I believe this is your only solution to achieving "zero noise" as you're hoping for.