---
title: "AT&T / T-Mobile Configuration Guide"
description: "Update the configuration on your device to work on the AT&T/T-Mobile networks after installing the upgraded communication board."
url: "https://docs.zentracloud.io/l/en/article/x3w5e1ndle-module-install-for-att-tmobile"
category: "Update Hardware"
updated_at: "2026-08-05T20:19:29Z"
language: "en"
---

# AT&T / T-Mobile Configuration Guide

Update the configuration on your device to work on the **AT&T** / **T-Mobile** networks after installing the upgraded communication board or installing an AT&T / T-Mobile SIM card.

#### Install the module

Follow the board replacement instructions to swap the module:

[ZL6 Instructions](http://library.metergroup.com/Instruction%20Sheets/18318_ZL6-IS_CellularBoardReplacement_WEB.pdf)

[Embedded iframe](//fast.wistia.net/embed/iframe/jtpgbxmusp)

[ATMOS 41W Instructions](https://publications.metergroup.com/Instruction%20Sheets/18559_ATMOS41W-IS_CellularBoardReplacement_Web.pdf?_gl=1%2Awuu4wc%2A_gcl_au%2AMjk5NjAwNTk5LjE3NTg5Mjk4ODk.)[](http://library.metergroup.com/Instruction%20Sheets/18318_ZL6-IS_CellularBoardReplacement_WEB.pdf)

* * *

#### Use the wizard to update the configuration

**Update the device configuration**

Use the [Module Swap Wizard](https://docs.zentracloud.io/l/en/article/d59m50oali-module-swap-wizard) in ZENTRA Utility on mobile to update the settings in your device. The tool detects the installed hardware, configures it for the network, and verifies the connection to ZENTRA Cloud.

**Terminal Commands**

If the desktop version of ZENTRA Utility is the only one you have access to, you can configure the device manually from the terminal window. See [AT&T/T-Mobile and Worldwide H1 Terminal Commands](/l/en/article/plmomnuk8s-at-t-t-mobile-and-worldwide-h-1-terminal-commands).