[Nexus One Q&A, Help & Troubleshooting] sarsh11:
Let me begin by saying that I am an a** for being so careless with my phone(as you will know when you read the rest of this post).

Okay, so two days ago I spilled yoghurt(yeah!) into the USB port of my phone and I didn't take it very seriously and just used a needle to clean it a little. After this my phone worked fine, no problems whatsoever..it was charging fine and running fine.

Today I wanted to connect my phone to my computer, but when I did so, my Windows said that it didn't recognize the device and its probably malfunctioning and I should replace it(probably what I'll have to do now :().

I connected it in every port in my computer, used my dad's blackberry connector, factory reset, even tried eViL's Sense ROM(I had it in my SD card, so tried it).

Even after all the above the computer didn't recognize my phone, although it did charge when connected!

Okay so I thought I should try cleaning the port better, so I took some Isopropyl Alcohol(Second Biggest Mistake) and used a ear bud to clean the port. I connected again and no change, so I decided I'll try later and left my phone in the port.

When I came back 20 minutes later the alcohol had made its way under the right bottom part of the screen and the touch response was messed up. The trackball was constantly glowing red, I fixed the trackball by simply using trackball alert to test a few different colors.

Now I realized I had messed up with the alcohol and I needed to clean the screen somehow(BIGGEST MISTAKE).

I used a hairdryer to blow into the USB port, it dried up some of the alcohol but the screen looked pixelated and the touch response was still screwed.

So then I popped out the screw driver set and started tearing the nexus one down..and from here it was all downhill. I managed to get all the way to the screen, use a lint free cloth to clean the screen and put it all back but all this was of no use. My phone doesn't turn on anymore, all I get is a small vibration on pressing the power button. I connected it to the wall charger and I got the charging LED light and backlight in the touch sensitive button area(great!). I plugged it out and in again and poof the charging LED vanished, no more backlight, no nothing.

What I have tried:

Remove battery and insert

Press volume+up+power > I got a long vibration once with backlight working but never again after that :(

Let the phone lie for an hour

For those who are lazy to read the whole thread, here is the synopsis:

1) Yoghurt in USB port, left 2 days.

2) No USB mounting, USB charging working.(Tried wiping, reset and different ROM).

3)Cleaned with Isopropyl Alcohol, still no USB > led to distorted screen and touch sensitivity.

4) Used hairdryer, slight effect on alcohol.

5) Persistent Red Trackball light, no effect on restart.

6) Tore down the phone, used lint free cloth to clean the alcohol.

7) Phone doesn't start, only vibrates on pressing power.

8) At first attempt, the backlight for the touch sensitive buttons worked and so did the charging LED, didn't show the light after uplugging.

Now I am lost on what I should do, the phone never had warranty as I am from India and I bought it online. Any suggestions/ideas on what the problem might be?

EDIT:

Just found out that my phone is actually working, but the display isn't. My mom just called me on that number and I somehow managed to pick the phone up and talk with her..any ideas people?