DS400 is a DUAL-GSM mobile phone, which supports GPRS (hereafter referred to as
“phone” or “phoneset”). It is able to support two different SIM cards from different networks,
with 262K TFT Color Display, 64 polyphonic ringtones, MP3/MP4 multimedia player and
1.3 Megapixel Camera, WAP service, Bluetooth, common Organizer functions, and can
be used as a USB mass storage.
This phone has two SIM slots for two different SIM cards. The SIM card inserted in the
Master slot is called Master SIM, and the other one in the Slave slot is Slave SIM. With
this phone, you can select which SIM you want in operation. This is a great idea if you
have a business SIM card and a personal SIM card, for you won’t have to carry two
phones or two SIM cards anywhere.
The mode of Slave can’t support EMS, STK, Chat, Voice Mailbox, Fixed Dialing,
Three-party call and conference call.
Note: In this user manual, to “press” a key means to press shortly; to “long press”
a key means to press and hold for a while (> 2 seconds).
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Please carefully read this manual before you use the phone.
For a newly bought phone, charge it for 4 hours before the first time of use, and
charge the second time only after the power has been used up. Repeat this several
times, and the battery will reach the best use effect.
This manual is for illustration purposes only. The phone and its accessories are
To input digits..........................................................................................................58
To input symbols.....................................................................................................59
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Before you use the phone, please carefully read this section to grab the correct method
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of use and ensure the safety of the holder, others and properties.
All the screens in this manual are for reference only, and some contents actually
displayed may depend on the pre-setting of the service provider or the network
operator, or the SIM card. If any functions referred to in this manual are different from
those of your phone, please follow your phone.
The specifications and appearance of this product are subject to change due to
improvement of functions without notice.
For GSM service-related issues, consult your GSM service provider.
Please back up your important data timely and keep them properly. The company is not
liable for any failure to call or loss of data due to misoperation, poor signal or power cut,
etc.
Do not use the phone in an environment of extremely high or low temperature;
otherwise, malfunctions may be caused. Use the phone in temperatures between 5ºC
and 35ºC and a humidity of 35% to 85%.
Using the phone in an environment of moist or high humidity may cause malfunctions
of the phone, the charger and the battery.
Do not drop or strongly impact the phone, otherwise, malfunctions may be caused and
the phone can’t be used.
Turn your phone off when you are near electrical blasting caps, in a blasting area, or at
the gas station. Obey all signs and instructions.
Do not use the phone near any electronic device vulnerable to interference. Otherwise,
malfunctions of electronic device may be caused. Such electronic devices include
medical electronic devices, such as hearing aids and pacemaker, fire alarms, auto
doors and other automatic equipment. If you have to use the phone near such devices,
please first consult the manufacturers and dealers of these devices to avoid
interference.
Switch off the phone when you are on the plane or in the hospital where the use of
mobile phones is prohibited to avoid interfering with electronic and medical equipment.
If you have to use the phone in such places, please follow the regulations of the sites.
Don’t use your phone while driving, as this is dangerous and could cause a traffic
accident. Pull over and park in a safe place before making or answering a call. Use
hands-free operation, if available.
The phone has an internal antenna. When switched on, do not hold the antenna area
on the top of the phone, otherwise, the quality of connection and the performance of
the antenna may be influenced, and the max. talk time may be reduced.
To avoid degaussing, do not put financial cards, phone cards or other magnetic cards
near the charger and the phone to avoid failure of use due to the cards.
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Do not place the phone and the battery under direct sunlight or in a car under burning
sun or other places of high temperature to avoid injury due to overheating, leakage,
cracking, distortion, or even fire of the battery.
Do not put the phone in a place with excessive dust or vibration (which may cause
failure) to avoid malfunctions of the phone.
Do not take apart the phone, the charger and the battery, or modify the internal
structure without permission to avoid malfunctions and accidents.
Do not let children fiddle with the phone or the accessories to avoid injuring themselves
or others, or damaging the phone or the accessories. The phone or the accessories
may contain small removable components which may easily cause suffocation of
children
If the phone is contaminated, please wipe it with a dry cloth. Do not use organic solvent
such as gasoline to wipe the phone to avoid causing damages of the outer surface.
If smoke or peculiar smell is produced during use, please immediately switch off the
phone and remove the battery. Please have the phone repaired as arranged by the
store where you bought the phone. Do not continue to use to avoid causing injury.
Do not dispose the phone as urban waste. For details, please refer to the local
regulations for the disposition of waste electronics.
If used in a place with weak signal, extremely high or low temperature, or outside the
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service area, the consumption of battery power will be faster, thus the standby time and
max. talk time may be reduced.
Please use the accessories, such as battery and charger, specified by the company to
avoid risks due to overheating, leakage, explosion, or even fire of the battery caused
by non-compliance with the specifications.
The battery should be put in a cool, ventilative and sunlight-free place. If the battery is
in the exhausting status for a long time, it can’t be charged. Therefore, if you do not use
the phone for long, please charge the battery periodically.
The battery is expendable goods. All the batteries have a certain life. If the
performance of the battery can’t be improved after repeated charging, the battery may
be discarded as useless and must be replaced with a new one.
Please fully charge the battery before you use the newly bought phone.
Do not charge the battery in a place with direct sunlight, a temperature equaling to or
below 0 degree or equaling to or above 45 degree, high humidity, excessive dust or
vibration (which may cause failure), or a place near TV or radio (as it may produce
noise interference to video or sound signal).
Please switch off the phone and wait over 2 seconds before removing the battery.
Do not dismantle the phone and the charger for modification without permission to
avoid malfunctions or injury.
Do not strongly impact or throw the phone or the battery to avoid leakage or
overheating of the battery, or malfunctions of the phone.
Do not short the two polarities of the battery to avoid leakage, overheating, fire or
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explosion of the battery.
If leakage of the battery enters the eyes accidentally, please immediately wash the
eyes with fresh water and go to a doctor. If it is not treated quickly, it may cause serious
injury, such as blindness.
If the battery is contaminated with liquid, it may cause burn or malfunctions due to
overheating of the battery. The charger may also cause overheating, damages, electric
shock and malfunctions. If the charger is accidentally sunk in water, or smoke or
peculiar smell is produced during charging, please immediately switch off the phone
and unplug the AC cable from the socket. Please have the phone repaired as arranged
by the store where you bought the phone. Do not continue to use to avoid causing
injury.
Do not put the charger and the AC cable in a place with flame or ovens to avoid
causing injury due to overheating, leakage or fire of the battery.
Do not touch the charger, the power cable and the plug of AC power supply with wet
hands to avoid electric shock or malfunctions.
Do not strongly pull the wire of the charger, or put heavy objects on the power cable, or
change the power cable optionally, otherwise, electric shock or fire may be caused.
When the battery is fully charged, please unplug the charger from the socket.
Do not dispose the used battery together with daily waste. Please dispose the used
battery in accordance with the regulations issued by the local authority.
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IInnttrroodduuccttiioon
PPhhoonneeaannddAAcccceessssoorriiees
Open the packing box of the phone and check that you have all the accessories to the
phone. If anything is missed, or any mistake is found in the user manual, such as missing
pages, please contact the local dealer.
One Mobile Handset, One Travel Charger, One Battery
One USB Cable, One Stereo Headset, One T-Flash Card (Micro SD Card)
One User Manual, One Service Booklet
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NetworkGSM/GPRS: 900/1800MHz
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Battery
Charger
Dimension 109.5(L) X 47.5(W) X 16.0(D) mm
Weight About 96.5 g (battery included)
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Rechargeable Li-ion Battery 800 mAh 3.7V
Input: 100-240VAC 50/60Hz Output: 5V~750mA
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Standby Time
Standby ModeStandby Time
Dual ModeAbout 100 hours
Master ModeAbout 100 hours
Slave ModeAbout 100 hours
Max. Talk Time
Master ModeAbout 3-7 hours
Slave ModeAbout 3-7 hours
*The standby time is the time for continuous working when the phone is not in any
call or moved. The Standby time and maximum Talk time depend on the specific
network.
To move the focus.
On the view finding screen, press the key to switch the frames
when the photo size is 176*220 pixels.
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4Send key (2)
5Send key (1)
To dial a phone number or send a message in single standby
mode.
In dual standby mode, dial a phone number or send a message
from the network of Slave SIM.
To answer a call. In dual standby mode, when two calls from
different networks come in simultaneity, press the key to answer
the call from the network of Slave SIM.
To call out the list of dialed numbers in idle.
View/open/play
In the music playback mode, to play/pause a track.
To dial a phone number or send a message in single standby
mode.
In dual standby mode, dial a phone number or send a message
from the network of Master SIM.
To answer a call. In dual standby mode, when two calls from
different networks come in simultaneity, press the key to answer
the call from the network of Master SIM.
To call out the list of dialed numbers in idle.
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6* key
8
Display
7LED
Navigation key (Up,
9
Down, Left, Right)
User manual
View/open/play
In the music playback mode, to play/pause a track.
When dialing in idle, press the key once to input “*”; press it twice
to input “+”; press it thrice to input “P”; or press it 4 times to input
“W”.
When editing a message number, press the key once to input “,”
In the edit screen, to open the list of symbols (when there are no
characters in the character selection section).
To switch between camera and video recording modes.
To rotate the screen clockwise by 90° to realize full-screen play
or restore the normal status.
To set whether to repeat, repeat one or repeat all tracks in audio
player.
To move the cursor.
To perform the operation designated to the navigation key in idle.
In the music playback mode, press Navigation key (Left/Right)
to switch between the previous and next tracks; press
Navigation key (Up) to play/pause; or press Navigation key
(Down)
Press Navigation key (Up/Down) to adjust the DigitalZoom
Ratio.
Press Navigation key (Left/Right) to adjust EV value or the
progress of video playback.
Press Navigation key (Left/Right) to browse the previous/next
SMS.
Press Navigation key (Left/Right) to return to the previous level
of folder or enter the next level of folder.
to stop.
In the calculator mode, to input “+”, “-”, “×” and “÷” respectively;
Press the key twice to perform “M+”, “M-”, “MC” and “MR”
respectively.
10Right function key
Indicates the functions on the bottom-right corner of the various
screens.
Indicates the functions on the bottom-left corner of the various
11Menu key
12End key
screens.
Long press to enter Service function.
To shoot photo or record video.
In idle, long press the key to switch off the phone.
In OFF mode, long press the key to switch on the phone.
To end a call.
The table below lists the icons that may appear on the status bar. Except the icons for
modes and the power icon, other icons are sorted according to the current mode and
priority of the phone.
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It appears when the phone has activated the modes containing Master
SIM, and when the phone is in related service area. The signal strength
is divided into 5 grades, and the specific display content depends on the
signal strength of the area where the phone set is located.
It appears when the phone has activated the modes containing Slave
SIM, and when the phone is in related service area. The signal strength
is divided into 5 grades, and the specific display content depends on the
signal strength of the area where the phone set is located.
Indicates the current residual battery power:
The power is full.
The power is moderate.
The power is low.
The power is to be used up.
It appears when the phone is set to mute during a call.
It appears when the phone is in Master SIM roaming status. The
function needs the support from the network operator.
It appears when the phone is in Slave SIM roaming status. The function
needs the support from the network operator.
It appears when the GSM Divert All Calls function of Master SIM is
activated.
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9
10
11
12
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15
16
17
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19
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24
It appears when the GSM Divert All Calls function of Slave SIM is
activated.
Indicates you have unread SMS of Master SIM. If the message capacity
is full, it will blink.
Indicates you have unread SMS of Slave SIM. If the message capacity
is full, it will blink.
Indicates you have unread MMS of Master SIM. If the message
capacity is full, it will blink
Indicates you have unread MMS of Slave SIM. If the message capacity
is full, it will blink
Indicates you have unread PUSH messages of Master SIM. If the
message capacity is full, it will blink
Indicates the current profile:
The means of prompt is “Ring”.
The means of prompt is “Vibration Only”.
The means of prompt is “Vibra and Ring”.
The means of prompt is “Vibra then Ring”.
The means of prompt is “Silent”.
The GPRS of Master SIM is in use.
The GPRS of Slave SIM is in use.
It appears when the earphones are plugged in.
It appears when the alarm is activated.
It appears when the key lock is activated.
There are any missed numbers.
Indicates you have unread voice messages of Master SIM.
The stopwatch is counting.
The chat room 1 of Master SIM is in use.
The chat room 2 of Master SIM is in use.
Bluetooth connectivity is on.
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Please store the cards out of the reach of children.
The cards and the contacts are vulnerable to damages due to scratching or bending.
Therefore, be careful when using, inserting or removing the cards.
Be sure to switch off the phone before you insert or remove the battery or the cards,
otherwise, the phone may be damaged.
To insert SIM card and battery
1.Insert the card in the slot in the direction indicated by the arrow. (Left: the card slot for
Master SIM. Right: the card slot for Slave SIM.) Please insert the card with the metal
contact of the card facing downwards.
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2.Insert the battery.
User manual
3.Replace the battery cover.
Tip: Be sure to use the original battery.
To remove the battery and SIM card
1.Switch off the phone.
2.Push and remove the battery cover.
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3.Remove the battery.
User manual
4. Push out the card from the slot with a finger in the direction indicated by the arrow.
(Left: the card slot for Master SIM. Right: the card slot for Slave SIM.)
To remove the Micro SD card
1.Open the Micro SD card slot cover on the bottom-left corner of the phone.
2. Push inwards the Micro SD card with the fingertip and release, and the Micro SD card
will be ejected.
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3.Pull out the Micro SD card.
Tip: When any application of the phone or the Micro SD card is running, do not insert or
pull out the Micro SD card, otherwise, data may be lost or the Micro SD card may be
damaged!
To insert the Micro SD card
1. Push the Micro SD card in the direction indicated by the sign printed on the card into
the card slot of the phone, with the metal contact of the card facing down.
2.Replace the Micro SD card slot cover.
Tip: Some Micro SD Cards have poor compatibility. Please buy and use tested and
certified Micro SD cards.
To charge the battery
1. Insert the plug of the charger into the interface of the phone, and insert the charger
into the power socket carefully. The battery icon will blink.
2. The red light is lit during charging. When the battery icon stops blinking or the green
light is lit, it indicates that the charging is finished.
3. After the charging, unplug the charger from the socket, and press and hold the left and
right buttons on the plug of the charger to pull out the plug from the phone.
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Tips:
The battery icon displayed on the screen indicates that the battery power is low.
Please charge the battery following the steps above.
Please charge the battery before you use the newly bought phone. We suggest you
charge the battery for 4 hours continuously for the first time.
Charging when the phone is in the ON mode will not influence the normal dialing and
answering, but this needs to consume power, thus the time of charging will increase.
We suggest you recharge the battery when the power is used up so as to prolong the life
of the battery.
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To switch on: Long press End key when the phone is in the OFF mode.
If the phone lock has been activated, you need to input the 4-digit password to unlock.
(The preset unlock code is 0000.)
If the SIM card has been inserted in the phone, and the related PIN code protection is
activated, you need to input the 4-8 passwords to unlock.
Warning: If you input three wrong PIN codes in a row, the SIM card will be locked and you
need to input the PUK code to unlock. Both the PIN code and PUK code are provided by
the network operator.
To switch off: In idle, long press End key.
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Menu > Settings > Standby Mode
There are three standby modes:
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Master /Slave: Both SIM cards can receive incoming calls or messages. Use Send
key (1)
you press
Slave SIM.
Master: To make/answer calls and receive/send messages through the network of
Master SIM. Both send keys are available for making call and sending message.
Slave: To make/answer calls and receive/send messages through the network of
Slave SIM. Both send keys are available for making call and sending message.
to dial a phone number or send a message from the network of Master SIM. If
Send key (2), the call or the message will be send through the network of
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The so-called “idle mode” refers to the standard mode where the phone has been
normally switched on and logged in the network, but no calls are in process or no menu is
used.
In idle:
Menu > Main Menu
Name > Quick Search
Press the Navigation key to enter the corresponding functions.
Press
Press
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Send key to call out the list of dialed numbers.
Menu key and * key to lock/unlock the keypad.
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