To fix “Error mounting root fs”, follow the instructions:
- Prepare an empty USB drive.
- Format the USB drive to FAT32 format. Usually, it’s the default format.
- Download the file to your computer.
- Rename it to imageupdate.
- Create the folder mag256 in the root of USB drive.
- Copy the file you downloaded to this folder.
- Insert the USB drive into the USB port on the back of the box.
- Unplug box from electricity and plug it back in while pressing and holding the Menu button on the remote control.
- System recovery utility menu will appear. Select Upgrade Tools and then press OK button on the remote control.
- Select Upgrade Software and then press OK button on the remote control.
- Select Using USB and then press OK button on the remote control.
- Confirm selection. Select Yes and then press OK button on the remote control.