How do I fix my nokia lumia 30- it wont stop rebooting itself and vibrating?

Hello

You can unlock your Nokia Lumia 520 with the help of many method but i have only 1 solution. I am sharing you few steps hopefully the steps solved your problem.
Steps:
Firstly power off your Nokia Lumia 520.
Press and hold the Volume Down button for about eight seconds, or until an exclamation point displays on-screen.

• If using a Windows 7 Nokia 520, press and hold the Power button, Camera key, and Volume Down button until the phone begins to vibrate.
• Press the Volume Up key, then press Volume Down, followed by the Power button, then the Volume Down key once again. This keystroke pattern will unlock your device, and reset the security passcode along with factory settings.
  • If using a Windows 7 Nokia 520, release the Power button, while continuing to press and hold the Camera key and Volume Down buttons.
  • Release all buttons when the phone reboots. The welcome screen will display, and your phone will be unlocked and restored to the original factory settings. Thankyou

Ringer Must Be Faulty.

A Windozzzzzzzzz Lumia Phone.......
The name says it all....
Time to Trade up to a Better Brand.
You get what you Pay For....

try a soft reset first:

• Hold the power button for 10 - 15 seconds until the phone restarts

If that doesn't work, you might need to do a hard reset. Keep in mind that hard reset WILL ERASE all contents from the phone! But... sometimes, it's better to have your phone back than a brick with stuff on it.
Hard reset:

• Make sure the phone is in the OFF position
• Hold the 3 buttons: volume down + power + camera
• Once the phone vibrates, let of of the power and continue to hold volume down and camera for another 5 seconds
• If that still doesn't work, you probably need to contact Nokia Support (now Microsoft Lumia support)

Hope that helps!

Try this- Press power + volume down , keys until the phone vibrates (about 8-10 seconds). See if it switches ON ..

If not wait till the Battery is completely drained. Then connect the charger .. Leave it for about an hour and see if it has switched ON on its own .. Else try the reset once again

If this isn't due to your phone being dropped in water, try doing a soft rest. To do this........Hold the "down volume" and "power button" at the same time for ten secs, until it vibrates, then let go of those buttons. The phone will now reboot. This will not erase any of the content on your phone (i.e., games, contacts list, programs, etc.)

Hope this helps. :)

I had this happen on my Lumia 920 a lot. I pressed and held the power button till it finally rebooted. I seemed like it took a minute before it finally rebooted, so don't give up after 10-30 seconds. If that doesn't work try the power button and volume down button till it reboots. Some sites say this is a hard reset that wipes the phone, but as a last resort, I tried it when the power button alone wouldn't "wake it up". When it rebooted everything was normal, so either it isn't a "hard reset" or it doesn't do the "hard reset" when the phone is locked up and the screen is black. I never tried the power and volume down reset when the phone was operational, so I don't know.

#Option 1, Hard Reset NOKIA LUMIA 720 with software menu:

1. Turn on the NOKIA LUMIA 720
2. Go to Menu Setting > Setting
3. Choose About and choose Reset your phone

#Option 2, Hard Reset NOKIA LUMIA 720 with Hardware Key Button:

1. Turn off NOKIA LUMIA 720
2. Press and hold together Volume Down Button + Power Button until LCD show exclamation mark icon
3. Now release all number 2 buttons.
4. Press one by one continuously:
   1. Press and Release Volume Up Button
   2. Press and Release Volume Down Button
   3. Press and Release Power Button
   4. Press and Release Volume Down Down
5. If the step finish, the NOKIA LUMIA 720 will do the hard reset or factory format by itself.
6. Wait until it finish to format, then we will need to setup like new again.