Telefunken TF-SP4001 Instruction Manual page 19

The smart- -
phone turns off
immediately after
turning on
The battery
discharges quickly
The battery cannot
be charged
The sound cannot
be heard
• It is possible that the battery is very low. In this
case, the system automatically prevents the complete
discharge to avoid loss of information and stored data.
Before you make an attempt to switch the device on
again, charge it for at least 5 minutes and do not plug the
power adapter off from the wall outlet during operation.
• You may use programs that require a large
expenditure of power. The largest power-draining
operation is video playback.
• Try to set screen brightness lower.
• Install the latest firmware.
• The battery is discharged quicker when operating at
low temperatures.
• Make sure the power adapter is plugged into a
working outlet. When you connect the power adapter to
the device, the power indicator should be lit.
• Make sure you are using the power adapter included
with the device.
• Battery may not charge when operating at high
temperatures.
Sound
• Make sure the sound playback is enabled in the basic
system settings. Make sure that the volume is set to the
maximum or your desired level.
• Many of the problems with the playback of audio are
associated with the software. If no audio issues were
previously observed, the problem may happen due to
incorrect software installation or configuration of the
installed program. To resolve the problem, contact the
manufacturer of the software.
• Check for damaged files. Try to play another file in
another directory.
General information
19