- The batteries are inserted correctly
- Only the batteries that are provided with your phone or rechargeable batteries of the exact same type and capacity are used
- The batteries are not empty. Put the handset onto the phone's charging cradle for charging. The handset will be switched on automatically within 30 minutes.
Note: In case the handset does not switch on, charge it for at least 60 minutes before switching it on. If the handset still cannot be switched on, go through the tips below: