Iphone wont start

Probably something went wrong, and your iPhone itself sees that too. That's why your iPhone asks to connect it to your PC or Mac with iTunes installed.
-Start iTunes on your PC or Mac
-Connect your iPhone to the PC or Mac
-Probably iTunes will advise to recover your iPhone.
>>If you didn't make regular backups of your data you probably will lose the data that's on your iPhone.<<
-Wait until the recovery procedure is done and see if your iPhone works again.

What if iTunes doesn't recognize your iPhone anymore in iTunes?
Thy a "soft reset' by pressing the ON/OFF button on top of your iPhone and the round menu button underneath your screen simultaneously until your iPhone reboots. Check if your iPhone connects to iTunes and try the recovery.
I hope this will help you solving your problem.

Connect it to iTunes, you might need to activate it, or restore it.
that's all that means. There's no verifiable OS active on the phone

your computer may not be recognizing iphone.if you have 110 volt sync cord adapter, see if you get the battery icon.if it does start charging, you may have to delete itunes and reinstall( or upgrade)

Try restoring it...here's how...

1. Disconnect the USB cable from the iPhone or iPod touch, but leave the other end of the cable connected to your computer's USB port.
2. Power off the device (Press and hold the Sleep/Wake button for a few seconds until the red slider appears, then slide the slider. Wait for the the iPhone or iPod touch to turn off.
3. Press and hold the Home button while reconnecting the USB cable to iPhone. When you reconnect the USB to iPhone, the device should then power on.
   
   Note: If you see the message "Charging... Please Wait" , let the device charge for at least 10 minutes to ensure the battery has some charge and then start with step 2 again.
4. Continue holding the Home button while iPhone starts up. While starting up, you will see the Apple logo.
5. When you see "Connect to iTunes" on the screen, you can release the Home button andiTuneswill display the recovery mode message:
   
   If you don't see the "Connect to iTunes" screen, then disconnect the USB cable from iPhone and repeat steps 3-6.

you can reset its password....but you'll lose all your data. Here's how...

1. Disconnect the USB cable from the iPhone or iPod touch, but leave the other end of the cable connected to your computer's USB port.
2. Power off the device (Press and hold the Sleep/Wake button for a few seconds until the red slider appears, then slide the slider. Wait for the the iPhone or iPod touch to turn off.
3. Press and hold the Home button while reconnecting the USB cable to iPhone. When you reconnect the USB to iPhone, the device should then power on.
   
   Note: If you see the message "Charging... Please Wait" , let the device charge for at least 10 minutes to ensure the battery has some charge and then start with step 2 again.
4. Continue holding the Home button while iPhone starts up. While starting up, you will see the Apple logo.
5. When you see "Connect to iTunes" on the screen, you can release the Home button andiTuneswill display the recovery mode message:
   
   If you don't see the "Connect to iTunes" screen, then disconnect the USB cable from iPhone and repeat steps 3-6.

take it to an apple store? or you can try pluging it in to ur computer.

Step 1. Turn off your iPhone.
Step 2. Hold down the power and home button.
Step 3. When you see the Apple logo, release the power button but continue holding the home button down.
Step 4. Open iTunes and wait for it to tell you that its in restore mode.try this it will work defenately

It may be defective. Even if its not charging well it should still light up if there's a charge connection. Return it if you can and buy a better one.