Lenovo Tab M10 FHD Plus User Manual page 25

Please press and hold the power button for more than 8 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 power button for more than
8 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 power button for more than 8 seconds until the device turns off. Then
switch it on again in normal way.