Description

This article will describe how to select the specific cellular frequency bands to register to cellular network. Since the best cellular bands of different areas and operators are different, this feature will improve the cellular speed to get better network experiences.

Supported Hardware Versions

Model	Cellular Module Version	Firmware Version
UR3x-L04EU	EC25EUXGAR08A08_20 .002.20.002 and later	3x.3.0.8 and later
UR3x-L04AU	EC25AUXGAR08A05_01 .002.01.002 and later
UR3x-L04AF	EC25AFXGAR07A04_01.0 05.01.005 and later
UR3x-L00J	All supported
UR75-500GL&UF51-501EU	All supported	76.2.0.8 and later
UR75-504AE &UF51-504xx	All supported	All supported
UF31	All supported	All supported

Note: the cellular module version number can be checked on Status > Cellular page of web GUI.

Configuration

Step 1: Know the best registration band

1. Contact cellular operator to know it.

2. Insert the SIM card to your phone and ensure the location of your phone is the same as router installation location. Then follow below solution to find the registration band:

Android phone: download App “cellular-Z” to test and find the band

iPhone: Dial the code *3001#12345#* and press the “Call” button. This will take you to the iPhone’s secret menu and find the registration cellular band of your phone.