Why is my device not powering on?

If your device does not power up, first check your device to see if the display is in tact and not completely broken since this could be the reason why the device seems to not be powering on. If the screen is intact, plug your device in to charge for a few minutes and then power it on. If it fails to power on then we can move on to inspect the battery. If the battery turns out to be the source of the problem, it must be removed and replaced. If attempting to repair the battery yourself, please reference the guide below to help you in your attempt to repair the device. Should you have any problems, please contact OnePlus directly so they can assist and help resolve your problem.

OnePlus One Battery Replacement