Format a USB Stick to FAT32.
Create a folder on Usb.
The folder must be labeled mag322
In the mag322 folder place imageupdate file you downloaded.
Unplug the power from the
322 for 5 seconds.
Plug in your USB Key at the back
Press and hold the menu key on the remote.
Then plug the power back in
while still keeping hold of the menu button on the remote.
When the BIOS screen shows up navigate to Update.
Chose the Update by USB option and click Yes.
The update will take few minutes
Which file are you using? because happen the same that the user above
Date:Sun Jan 13 15:34:53 GMT 2019
Env size:161 138486226
could you share the file for 322?