Huawei H 210 C Manual

							17 
1.
  S
elect  Menu  >  Settings  >  Security  >  Master Reset.  
2 .
  Read the warning and select Ye s
. 
3 .
  Enter your ph
one lock code . The phone will resets the settings, 
and then restarts.   
 
You can see the section "Phone Lock" to find the default phone lock code, 
and how to change it. If  you reset your phone to its factory settings, the 
phone lock code will be res tore to  the defau lt one.  
11 TTY Operation  
The Teletypewriter (TTY) is a typewriting device that is used to 
communicate over a phone network. By enabling the TTY function 
and connecting your phone to a TTY device, you can use the TTY 
device to send or receive messag es. 
Configuring the TTY Settings  
Select Menu >  Settings  >  Phone  >  TTY Settings  to configure 
the following TTY settings:  

 TTY  O F F : Use standard voice speaking mode and listening 
mode.  

 TTY  F U LL : Send and receive TTY characters.  

 TTY VCO : Receive TTY characters  but send by speaking into 
the microphone.  

 TTY  HCO : Send TTY characters but receive by listening to the 
earpiece.  
Using a TTY  
To use the TTY function:  
1 .
  Set your phone to TTY mode and connect the TTY device into 
the headset jack of your phone.
  
						

							18 
2.
  Make or answer
 a call.  
3 .
  When the call is set up, use the TTY device to send or receive 
messages.
 
4 .
  Press 
 
to end the call.  
12 Troubleshooting  
If you encounter any problem when using your phone, try to 
rectify the problem according to the following table. If the 
problem persists, contact the service provider or the dealer.  
Problem Ensure that... 
The battery 
cannot be 
charged.  The charger is properly connected to your 
phone and the power socket.
 
The phone cannot 
be powered on. 

 The battery power is sufficient.  

 The battery is properly installed.  

 Press and hold  for about 3 
seconds.  
You cannot make 
a call except an 
emergency call.  
 The phone number is correct.  

 You are in the network service area.  

 You have not enabled the call restriction 
function.  
Bad call quality.  

 The signal strength is strong enough.  

 If you are staying indoors, move close to 
a window.   
						

							19 
Problem Ensure that... 
During a call, the 
other side cannot 
hear your voice.  
 The microphone is not covered.  

 If you use a wired headset, make sure 
connector is fully plugged in.  
The signal 
strength is not 
strong enough or 
your phone is 
often off line.  Move close to a place with strong signal 
strength.
 
Your phone 
displays "No 
service found", 
"Service 
unavailable" or 
"Network 
problem".  
 You are in an area with very weak signal 
or outside your service pr ovider's 
network coverage (in a tunnel or 
surrounded by buildings). If so, move to 
another area and try again.  

 Do not utilize the service option without 
obtaining authorization from your 
service provider.  
The phone cannot 
find other 
Bluetooth devices 
or fails to send or 
receive data via 
Bluetooth.  

 The Bluetooth function of both devices is 
turned on.  

 The distance between the two Bluetooth 
devices is less than 10 meters.  

 There are no obstacles between the two 
devices.  

 The other Bluetooth device is set to 
vis ible.  
  
						

							20 
13 Safety information  
This section contains important information about the operation 
of your device. It also contains information about how to use the 
device safely. Read this information carefully before using your 
device. 
Electronic device  
Do not use your device if using the device is prohibited. Do not 
use the device if doing so causes danger or interference with other 
electronic devices. 
Interference with medical equipment  
 Follow rules and regulations set forth by hospitals and health 
care facili ties. Do not use your device where prohibited.  

 Some wireless devices may affect the performance of hearing 
aids or pacemakers. Consult your service provider for more 
information.  

 Pacemaker manufacturers recommend that a minimum 
distance of 15 cm be maintai ned between a device and a 
pacemaker to prevent potential interference with the 
pacemaker. If using a pacemaker, hold the device on the side 
opposite the pacemaker and do not carry the device in your 
front pocket.  
Protecting your hearing when using a heads et 
 Using a headset at high volumes may damage your hearing. To 
reduce this risk, lower the headset volume to a safe and 
comfortable level.  

 Exposure to high volumes while driving may cause distraction 
and increase your risk of an accident.   
						

							21 
Areas with flammables and explosives  
 Do not use the device where flammables or explosives are 
stored (in a gas station, oil depot, or chemical plant, for 
example). Using your device in these environments increases 
the risk of explosion or fire. In addition, follow the instructions 
indicated in text or symbols.  

 Do not store or transport the device in containers with 
flammable liquids, gases, or explosives.  
Traffic security 
 Observe local laws and regulations while using the device. To 
reduce the risk of accidents, do not use your wireless device 
while driving.  

 Concentrate on driving. Your first responsibility is to drive safely.  

 Do not hold the device while driving. Use hands -free 
accessories.  

 When you must make or answer a call, pull of f the road safely 
and park the vehicle f irst.  

 RF signals may affect the electronic systems of motor vehicles. 
For more information, consult the vehicle manufacturer.  

 Do not place the device over the air bag or in the air bag 
deployment area in a motor vehicle. Doing so may hurt you 
because of t he strong force when the air bag inflates.  

 Do not use your device while flying in an aircraft or 
immediately before boarding. Using wireless devices in an 
aircraft may disrupt wireless networks, present a hazard to 
aircraft operation, or be illegal.   
Operating environment 
 Avoid dusty, damp, or dirty environments. Avoid magnetic 
fields. Using the device in these environments may result in  
						

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circuit malfunctions. 

 Do not use your device during thunderstorms to protect your 
device against any danger caused by lightning.   

 Ideal operating temperatures are 0°C to 35°C. Ideal storage 
temperatures are  –20°C to + 70°C. Extreme heat or cold may 
damage your device or accessories.  

 Do not expose your device to direct sunlight (such as on a car 
dashboard) for prolonged periods.   

 To protect your device or accessories from fire or electrical 
shock hazards, avoid rain and moisture.  

 Keep the device away from sources of heat and fire, such as a 
heater, microwave oven, stove, water heater, radiator, or 
candle.  

 Do not place sharp met al objects, such as pins, near the 
earpiece or speaker. The earpiece may attract these objects and 
result in injury.   

 Stop using your device or applications for a while if the device 
is overheated. If skin is exposed to an overheated device for an 
extended  period, low temperature burn symptoms, such as red 
spots and darker pigmentation, may occur.   

 Do not use your device's camera flash directly in the eyes of 
people or pets. Otherwise temporary loss of vision or damage 
to the eyes may occur.  

 Do not touch th e device's antenna. Otherwise, communication 
quality may be reduced.   

 Do not allow children or pets to bite or suck the device or 
accessories. Doing so may result in damage or explosion.  

 Observe local laws and regulations, and respect the privacy and 
legal  rights of others.    
						

							23 
Child's safety 
 Comply with all precautions with regard to child's safety. 
Letting children play with the device or its accessories may be 
dangerous. The device includes detachable parts that may 
present a choking hazard. Keep away from children.  

 The device and its accessories are not intended for use by 
children. Children should only use the device with adult 
supervision.   
Accessories 
 Using an unapproved or incompatible power adapter, charger 
or battery may cause fire, explosion or other  hazards.   

 Choose only accessories approved for use with this model by 
the device manufacturer. The use of any other types of 
accessories may void the warranty, may violate local regulations 
and laws, and may be dangerous. Please contact your retailer 
for  information about the availability of approved accessories in 
your area.  
Charger safety  
 For pluggable devices, the socket -outlet shall be installed near 
the devices and shall be easily accessible.  

 Unplug the charger from electrical outlets and the device w hen 
not in use.  

 Do not drop or cause an impact to the charger.  

 If the power cable is damaged (for example, the cord is 
exposed or broken), or the plug loosens, stop using it at once. 
Continued use may lead to electric shocks, short circuits, or fire.  

 Do no t touch the power cord with wet hands or pull the power 
cord to disconnect the charger.  

 Do not touch the device or the charger with wet hands. Doing  
						

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so may lead to short circuits, malfunctions, or electric shocks. 

 If your charger has been exposed to water,  other liquids, or 
excessive moisture, take it to an authorized service center for 
inspection.  

 Ensure that the charger meets the requirements of Clause 2.5 
in IEC60950 -1/EN60950- 1 and has been tested and approved 
according to national or local standards.  

 Connect the device only to products with the USB -IF logo or 
with USB -IF compliance program completion.  
Battery safety 
 Do not connect battery poles with conductors, such as keys, 
jewelry, or other metal materials. Doing so may short- circuit the 
battery and c ause injuries or burns.  

 Keep the battery away from excessive heat and direct sunlight. 
Do not place it on or in heating devices, such as microwave 
ovens, stoves, or radiators. Batteries may explode if overheated.  

 Do not attempt to modify or remanufacture the battery, insert 
foreign objects into it, or immerse or expose it to water or 
other liquids. Doing so may lead to fire, explosion, or other 
hazards. 
 If the battery leaks, ensure that the electrolyte does not make 
direct contact with your skins or eyes. I f the electrolyte touches 
your skins or splashes into your eyes, immediately flush with 
clean water and consult a doctor.  

 In case of battery deformation, color change, or overheating 
while charging or storing, immediately stop using the device 
and remove the battery. Continued use may lead to battery 
leakage, fire, or explosion.  

 Do not put batteries in fire as they may explode. Damaged  
						

							25 
batteries may also explode. 

 Dispose of used batteries in accordance with local regulations. 
Improper battery use may lead t o fire, explosion, or other 
hazards. 
  Do not allow children or pets to bite or suck the battery. Doing 
so may result in damage or explosion.  

 Do not smash or pierce the battery, or expose it to high 
external pressure. Doing so may lead to a short circuit or 
overheating.   

 Do not drop the device or battery. If the device or battery is 
dropped, especially on a hard surface, and may be damaged.   

 If the device standby time shortens significantly, replace the 
battery.  

 Use the battery only with a charging system tha t is IEEE-Std -
1725 standard qualified. The use of an unqualified battery or 
charger may lead to fire, explosion, leakage, or other hazards.  

 Replace the battery only with an IEEE -Std -1725 standard 
qualified battery. The use of an unqualified battery may lea d to 
fire, explosion, leakage, or other hazards.  

 Do not disassemble or open, crush, bend or deform, puncture 
or shred the battery. Otherwise, it may lead to electrolyte 
leakage, overheating, fire, or explosion.  

 Do not solder battery poles or dismantle the  battery. Doing so 
may lead to electrolyte leakage, excessive heat, fire, or 
explosion.  
Cleaning and maintenance  
 Keep the device and accessories dry. Do not attempt to dry it 
with an external heat source, such as a microwave oven or hair 
d r y e r.     
						

							26 
 Do not expose your device or accessories to extreme heat or 
cold. These environments may interfere with proper function 
and may lead to fire or explosion.   

 Avoid collision, which may lead to device malfunctions, 
overheating, fire, or explosion.   

 Before you clean or maintain the device, stop using it, stop all 
applications, and disconnect all cables connected to it.  

 Do not use any chemical detergent, powder, or other chemical 
agents (such as alcohol and benzene) to clean the device or 
accessories. These substances may cause damage to parts or 
present a fire hazard. Use a clean, soft, and dry cloth to clean 
the device and accessories.  

 Do not place magnetic stripe cards, such as credit cards and 
phone cards, near the device for extended periods of time. 
Otherwise the magn etic stripe cards may be damaged.  

 Do not dismantle or remanufacture the device and its 
accessories. This voids the warranty and releases the 
manufacturer from liability for damage. In case of damage, 
contact an authorized service center for assistance or r e p a i r. 

 If the device screen is broken in a collision, immediately stop 
using the device. Do not touch or attempt to remove the 
broken parts. Promptly contact an authorized service center.   
Emergency calls 
The availability of emergency calls is subject to y our cellular 
network quality, service provider policy, and local laws and 
regulations. Never rely solely on your device for critical 
communications like medical emergencies.  
Environmental protection 
 The device and its accessories (if included), such as the  power