Don't worry, this happens sometimes and it may just need a forced reset. This procedure is simple and it will NOT erase any data from your device.
Follow these steps:
This procedure is completely different to factory reset which would erase your data. This procedure is only if your device is frozen and not responding.
If your MacBook does not show any signs of life after this procedure or it keeps freezing, we would encourage you to bring it to us for a diagnostic so that we can figure out what's going on with it.
Bring it to our store in Tollcross at 14 Home Street, Edinburgh.
You can also call us on 01312211117.

Drop in to see us for device repairs or general advice seven days a week at 14 Home Street, Edinburgh EH3 9LY or give us a call on 0131 221 1117
We’re always here to help. Hex repair specialists are high-performing and trusted experts in the field of iPhone and other technology repairs. We only use genuine or highest quality replacement parts and always do everything that we possibly can to repair and restore your device, something many other repair centres can’t do or just prefer to sell you a new device.
Dex