Step3：Turn off the firewall and monitor software, and then have a try；
Step4：If the above method does not work, please go to the local data card data card service
point to detect the function.
16. Can not find 3G/4G network，How to deal with？
Probable Cause：
SIM card may be faulty or SIM card does not have permission
3G/4G network No network coverage
Data card is probably the fault
Method：
Step1：Make sure the correct use of the SIM card
Step2：Please consult your network operator if there is network coverage or not( Insert the SIM
card into the other phones or other terminals which support 3G/4G to confirm whether have 3G
signal / 4G signal),If there is no signal, contact your network operator;
Step3 : When replacing other terminal using normal, go to the local data card data card service
point detection function.
17. Signal display properly, the network suddenly interrupted，
How to deal with？
Probable Cause：
A long time have not Data services
SIM card balance may be insufficient
Operator network failure
Data card is probably the fault
Method：
Step1：Make sure if you do not data services a long time, if there is long time without data
services, the device will automatically start the network interruption,it is normal。
Step2: If a sudden interruption in the use of the network, please reconnect attempts, if you can
not connect, Please check rates；
Step3: Try to replace the position, If does not work, consult your network operator；
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