For those of you who have an Atrix 4G but didn’t buy the Atrix 4G Laptop Dock nor the USB Dock, you are in luck because someone figured out how to hack the WebTop app so you can access the WebTop just with your HDMI cable.
I personally think the laptop dock and the USB dock is still way over-priced and besides, if I can access the WebTop via HDMI cable, I can just use my bluetooth keyboard and mouse instead.
Then download this zip file:
Unzip it and put the whole atrix4g-dock folder into your root directory such as C:\atrix4g-dock as shown here:
Then open up a command prompt and type:
This will switch you to that directory.
Enter the following lines (just copy and paste using your mouse):
adb push DockService.apk /mnt/sdcard/ adb push PortalApp.apk /mnt/sdcard/ adb shell su mount -o rw,remount /dev/block/mmcblk0p12 /system mv /system/app/DockService.odex /system/app/DockService.odex.bak mv /system/app/PortalApp.odex /system/app/PortalApp.odex.bak cp /system/app/DockService.apk /system/app/DockService.apk.bak cp /system/app/PortalApp.apk /system/app/PortalApp.apk.bak cp /mnt/sdcard/DockService.apk /system/app cp /mnt/sdcard/PortalApp.apk /system/app reboot
Your Atrix 4G should now reboot.
Simply plug-in your HDMI cable to your Atrix 4G and you should see a pop-up like below:
Select “Motorola webtop”.
You should be able to see the WebTop on your HDTV or LCD like shown above.
You can use your phone now as a mouse or keyboard. The best way is to hook up your bluetooth keyboard and mouse, which will work right off the bat.
Huge thanks to the developers at XDA Developers! – Link