EN ©
mPTech 2021.
All rights reserved.
Jazz
27
Network fail
In areas with a weak signal, it may not be
possible to make calls. You may also not
be able to receive calls. Move to another
location and try again.
Poor sound quality
during conversation
Make sure that the speaker and
microphone are not covered.
No one can call me
The phone has to be on and within GSM
network reach.
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.
The connection
cannot be established
Check if the typed-in phone number is
correct.
Check if the phone number entered to the
[Contacts]
is correct.
Enter the correct phone number if
necessary.
Device maintenance
Follow the instructions below.
•
For cleaning use only a dry cloth. Never use any agent with
a high concentration of acids or alkalis.
•
Use the original accessories only. Violation of this rule may
result in an invalidation of the warranty.
