EN © mPTech 2023. All rights reserved. Halo 3 LTE
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Factory settings
To restore the factory settings, select in the phone Menu:
[Settings] > [Restore Settings]. The code for resetting to factory
settings is: 1122.
Troubleshooting
Make sure that the SIM card is installed
correctly.
If the SIM card is secured with the PIN code
you have to enter the PIN when turning the
phone on and press <OK>.
The phone has to be on and within GSM
network reach.
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.
Poor sound quality
during
conversation
Make sure that the speaker and microphone
are not covered.
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.