Lenovo YOGA BOOK with Windows User Manual page 21

Please free up some memory and try to install again.
The touch screen does not work or is not sensitive
Please press and hold the On/Off button for more than 10 seconds until the device turns off.
Then switch it on again in normal way.
Device does not power on or system crashes
Please charge the battery for half an hour and then press and hold the On/Off button for more
than 10 seconds until the device turns off. Then switch it on again in normal way.
The device cannot access the internet via a wireless network
Restart the wireless router or go to Settings and restart WLAN.
The device cannot wake up from sleep mode
Please press and hold the On/Off button for more than 10 seconds until the device turns off.
Then switch it on again in normal way.