Updating Motorola Anroid to Gingerbread 2.3.4

AT&T Atrix 4G with and UNLOCKED bootloader

Windows OS x64/x86 (Windows XP/Vista/Windows 7 - it should work on this OS)

Motorola drivers must be installed

Put your device in Fastboot mode by holding the volume down button while booting then volume up.

If you followed the steps correctly you should have Gingerbread 2.3.4 on you AT&T Atrix.

On your PC or Computer or Laptop: Use this command

On Windows START Menu, click the RUN command and type CMD (the Windows Prompt)

Type this commands (one at a TIME)

cd C:\moto-fastboot
moto-fastboot flash boot atrix-2.3.4-hktw-boot.img
moto-fastboot flash system atrix-2.3.4-hktw-system.img
moto-fastboot -w
moto-fastboot reboot

Download the .zip file here and extract on your drive C:

This guide will avoid your from boot looping.