Requirements
You need a Windows computer connected to the same LAN network that your MAG 254.
On your MAG 254:

Connect your MAG to the power line and immediately press the MENU key in your remote control.

upgrade-tools

Go down to UPGRADE TOOLS and press the right arrow in your remote control.

mc-upgrade

You will see this scren:

loading-image

On your Windows Computer:

Step 1– Download this file:

Mag 254 flashing process

It contains the next files:

bootstrap
imageupdate
mcast_v2.0.exe

Extract them and put them in the same directory.

Step 2РOpen mcast_v2.0.exe, Select your local network and click the button SELECT

mcast-1

Step 4– Make sure you have the same ip address and port on your MAG screen. If you don’t modify them on mcast_v2.0.exe. (in this case i should modify the current one for 224.50.0.70)

mcast-2

Step 5– Press the first START button (Multicast load bar should start moving) the press the second START button.

Wait until the image load process is finished.

Watch this video if you still need help.