Welcome to the 3G/4G<E Base HAT category
This category is for technical support and discussions related to the
Sixfab 3G/4G LTE Base HAT for Raspberry Pi.
What you can get help with
- Hardware installation on Raspberry Pi 4, 5, and Compute Module 4
- Quectel EC25-E, EC25-A, EC21 module setup and configuration
- USB interface recognition (usb0, eth1, wwan0)
- PPP and QMI/ECM connection management
- APN settings for different carriers and countries
- AT command reference for modem control
- Compatibility with Raspberry Pi OS, Ubuntu, Debian, and other distros
- Differences between miniPCIe and USB modem variants
Before you post
- Check the official docs first: docs.sixfab.com
- Search — your question may already be answered
- Fill in the topic template completely — OS version, module model, and
error output help us answer faster