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2. Power supply and charging
2.1 This unit can be powered by internal battery or input with a DC power supply using an
external DC port.
2.2 Charging can use Type-C USB port, support QC2.0 standard fast charger, also can use
DC port input the external power supply, act as fast charger when the DC CHG switch
opened;
2.3 The detail charger and power supply needed current and voltage standard can check the
part of port instruction;
2.4 The charging light status indication is defined as follows:
Steady red: quick charging
Steady blue: common charging
Steady green: fully charged
Red lamp flashing or blue lamp flashing: maybe your charger voltage not be in
accordance with requirements, please try to change one charger
Double color lamps alternate flashing: not detected battery or battery abnormal, please
try to break off the charger and insert again, repeatedly try but still like so, please contact the
service after sales.
3.Firmware upgrade
3.1 The latest firmware files can be downloaded on official website, unpack the files and
copy them to the SD card.
3.2 Insert the SD card into the player, long press the ENTER key and turn on the power
switch, thus, the updating mode is entered.
3.3 Select the updated file in the updating list and press the ENTER key to start updating,
and restart the power after completion.
Note: For more about this, see the official website: www.qlshifi.com
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