mPTech 201807, Quick Start Manual

Page: 26 / 61

© 2018 mPTech. All rights reserved. Rumba - EN
26
Factory settings
To get back to factory settings enter [Menu] > [Settings] > [Restore
factory settings], input the phone password and confirm by
pressing <OK>. Password required to restore the factory settings
is 1122.
Troubleshooting
Message Possible solution
Insert SIM card
Make sure SIM card has been correctly
installed.
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>.
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.
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.
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.
No one can call me
The phone has to be on and within GSM
network reach.
Proper use of the battery
Battery in this device can be charged with a charger. If the battery
level is low, charge it. To prolong battery life, let it discharge
beneath 20% of the battery capacity before connecting the charger
and charge it up to 100%. If not used, unplug the charger from the
phone and power grid.