Nokia Lumia 900 - Can I remove the integrated battery from my Lumia phone by myself?

If you remove the integrated battery yourself, the device warranty is void after that. You may also damage your phone in the process. You do not need to remove the battery if your phone jams, instead do this:

  1. Press and hold the Power and Volume down keys simultaneously until the phone vibrates.
  2. Release and the phone will restart.

If the battery is exhausted and needs to be replaced, visit the nearest Nokia Care Point.