Troubleshooting - M-Life ML0639 Owner's Manual

5 Troubleshooting

Problem
SIM card error
Poor received signal
quality
EN
32
Cause
The SIM card is damaged
The SIM card is not in po-
sition
The metal face of the SIM
card is polluted
Signals are obstructed.
For instance, radio wa-
ves cannot be effectively
transmitted nearby a high
building or in a basement.
Line congestions occur
when you use the mobile
phone in high-traffic hours
Solution
Contact your network se-
rvice provider
Check the SIM card
Clean the SIM card with a
clean cloth
Move to a place where si-
gnals can be effectively
transmitted
Avoid using the mobi-
le phone in high-traf-
fic hours