User manual

The battery recycling information of Taiwan
Battery recycling information for the United States and Canada
Battery recycling information for the European Union
ENERGY STAR model information
ENERGY STAR® is a joint program of the U.S. Environmental Protection Agency and the U.S.
Department of Energy aimed at saving money and protecting the environment through energy
efficient products and practices.
Lenovo is proud to offer our customers products with the ENERGY STAR qualified designation.
You might find an ENERGY STAR mark affixed on the computer or displayed on the power
settings interface. Lenovo phones of the following model name, if carry an ENERGY STAR mark,
have been designed and tested to conform to the ENERGY STAR program requirements for
phones.
Lenovo TB-7504F
By using ENERGY STAR qualified products and taking advantage of the power-management
features of the phone, you can help reduce the consumption of electricity. Reduced electrical
consumption can contribute to potential financial savings, a cleaner environment, and the
reduction of greenhouse gas emissions.
For more information about ENERGY STAR, go to http://www.energystar.gov.
Export classification notice
This product is subject to the United States Export Administration Regulations (EAR) and has an
Export Classification Control Number (ECCN) of 5A992.c. It can be re-exported except to any of
the embargoed countries in the EAR E1 country list.
Troubleshooting
Insufficient memory prompt appears during app installation
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 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 On/Off 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.