mPTech HAMMER 4, Руководство пользователя

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© 2019 mPTech . All rights reserved. HAMMER 4
19
Troubleshooting
Problem / message Possible solution
Network fail
In areas where signal or reception is weak, calls may not
be possible. Also receiving calls may not be possible.
Move to another location and try again.
Insert SIM card Make sure SIM card has been correctly installed.
The connection
cannot be
established
Check if the typed-in phone number is correct.
Check if the phone number entered to the
[Phonebook]
is correct.
Enter the correct phone number if necessary.
Input PIN
If the SIM card is secured with the PIN code you have to
enter the PIN when turning the phone on and press
<OK>.
I cannot hear the
caller./ The caller
cannot hear me
The mic. should be close to mouth.
Check if the built-in mic. is not covered.
When a headset is un use, check if it has been connected
correctly.
Check if the built-
in speaker isn’t covered.
Poor sound quality
while on the phone
Make sure that the speaker and mic. are not covered or
have not been impaired.
No one can call me The phone has to be on and within GSM network reach.
If the problem persists, contact your dealer.
6. Proper phone maintenance.
Proper use of the battery
Battery in this device can be charged with a charger. If the battery level is low,
recharge it. To prolong battery life, let it discharge before connecting the
charger. If not used, unplug the charger from the phone. Excessive charging
causes shortened battery life.
The temperature of the battery has an impact on its charging cycle. Prior to the
charging process, cool the battery or raise its temperature so that it is similar to
the room temperature (approx.
20ºC / 68 º F).
If the battery temperature exceeds 40ºC / 104 º F) the battery must not be
charged! Use the battery only according to its intended purpose. Avoid leaving
the battery within a magnetic field range, because it shortens its life. Do not use
a damaged battery The battery lifespan can be shortened if it has been exposed
to very low or very high temperatures - this causes interference to the phone,
even when the battery has been properly charged. Do not throw the battery
into flames! Do not throw a worn-out battery
– send it or return it to an
authorized recycling point.