mPTech myPhone Tango LTE - Charging the Battery; Factory Settings; Troubleshooting

EN © mPTech. All rights reserved. TANGO LTE
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phone's contacts and user information. To set contacts or user information, hold
down <2> or go to [Settings] > [I.C.E].
Charging the battery
Connect the charger's USB-C plug to the phone's charging connector, then plug
the charger into a power outlet. *Warning: Improper connection of the charger
can cause serious damage to the phone. Damages caused by an improper use of
the phone are not covered by the warranty.
While charging, an icon of battery state located in upper right corner of the screen
should be animated. When charging is complete the battery icon should be static,
then unplug the charger from the power outlet. Unplug the cable from the socket
on the phone.
Factory settings
To get back to factory settings enter [Menu] > [Settings] > [Restore factory
settings] > <OK>, input the phone password and confirm by pressing <OK>.
Password required to restore the factory settings is 1122. Subsequently confirm
restoring the factory settings.
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>.
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.
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.
No one can call me
The phone has to be on and within GSM network reach.
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.