Wont Turn On, Coil Smoked?

Yesterday my iPhone 3gs fell on the floor and the speaker, charging port and mic wouldnt work. I took the front assembly off and noticed the dock connector ribbon had come off so I reconnected it and put it back together and it charged and the mic worked but the speaker still wouldnt.. Then i decided to take out the dock/speaker/mic part and have a look.. So I took the motherboard out and removed it and then the dock bit, had a look at it didnt attempt to mess with it and put the phone back together. Now the phone would still turn on but the screen would only flash on for less than a second when I pressed home or power (The phone was still working I got texts and the vibrate switch worked). Just no screen. so I took it apart again and made sure everything was connected and was secure but now when I put it back together it wouldnt turn on! Now I decided to leave it untill today.. Today it still wouldnt turn on but when I connected it to the charger or computer it would get warm on the back but wouldnt be recognised in iTunes, I took it apart AGAIN and looked under the EMI shield and noticed the coil looked a bit dodgy so it brushed it gently with my finger to see if it would move.. It smoked me and fell off the motherboard! I had been having a problem with the backlight only working on low setting and the proximity sensor not working but I left that alone. Now the phone still wont turn on and I dont have a clue what to do with it!