Zte MF633 - Page 47

47
Problem
Description
Possible Causes Problem Solving
3. The USIM/SIM
card isn’t inserted
well, such as
inserted in reverse.
3. Insert the
USIM/SIM card
correctly again.
Message sent
failed.
1. The SMS center
number isn’t
correct.
1. Consult your
service provider for
the correct number.
Then configure the
right number in
Message settings.
2. The network is
busy .
2. Try later.
Date connection
failed.
1. You are in
the place where no
GSM/GPRS/EDGE/
UMTS/HSPA
network covered，
such as
underground
parking lot, tunnel
etc.
1. Change to the
place where there
is good signal.
2. The network at
this time in this
place is busy now.
2. Try later.
3. The APN in the
configuration files is
error.
3. Check the APN
in the configuration
file in the
“Connection
settings”.