Remove the battery and the power cable then hold down the Start button for 50 seconds then plug the power cable back on and see if it will start without the battery.
If it starts you can then replace the battery as well.
This thread is now locked and can not be replied to.
How to watch Windows Event live stream, live blog | Microsoft event live stream: Watch Microsoft…
1995-2015: How technology has changed the world in 20 years
This amazing app turns your iPad Pro into a Cintiq
iPhone 7 Plus review: A superb big-screen phablet, but the price tag's enormous | iPhone 7 Plus…
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.