Sony DoCoMo Xperia feat HATSUNE MIKU SO-04E Instruction Manual page 270

Check if the adapter cable and the
terminal are set correctly. P.36
When using the AC Adapter 04 (optional),
check if the microUSB plug of the AC
adapter is connected to the terminal or
supplied desktop holder correctly. P.35,
P.36
In case of using the desktop holder, are
the terminal's contacts for the desktop
holder dirty? Clean the contacts with a dry
cotton swab etc. if they are dirty.
When using Micro USB Cable 01
(optional), check if the PC is turned on.
If you execute calls, communications or
other function operations for a long time
while charging, the terminal may become
hot and the notification LED turns off
(charging stops) or charging may not be
completed. In this case, wait until the
temperature of the terminal drops and
charge again.
The notification LED blinks in red and the
terminal cannot be operated.
When the battery level is low, charge the
battery pack. P.34
Terminal operation
Become hot while operating/charging.
While calling, depending on the radio
wave condition or call duration time, the
terminal may become hot. This condition
is not abnormal.
While operating or charging, or if you
watch 1Seg, record video, etc. for a long
time while charging the battery pack, the
terminal, and adapter may become hot.
There is no problem about operation and
continue to use it.
The operation time provided by the
battery is short.
Is the terminal left for a long time under
the state of out of service area?
Out of service area, a lot of power is
consumed to search available radio
waves.
The operating time of the battery varies
depending on the operating
environment and the degradation level of
the battery pack. P.34
The battery pack is a consumable
accessory. Each time it is charged, time
available with each charging reduces.
If the operation time is too short with fully
charged state, purchase a specified
battery pack.
Appendix/Index
268