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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.