• Recheck folder name, update files, file sources. Folder name and imageupdate file must contain only small letters (lowercase). Folder and file names should not contain characters added: examples of wrong name are mag_254, imageupdate (1), Bootstrap_254, and so on.
• If you are not sure about source of update files (imageupdate and Bootstrap), redownload them.
• Check extension of the update files - set view mode of the folder with files 'Show extension'. Files should not have extensions (like txt, etc.).
• There may be problem with USB-drive. Check the requirements for the USB-drive again: file system is FAT32, first partition is used.
• If you update from Bootloader menu - try another USB socket of STB.
• If you can not resolve problem with USB-drive, please note the following:
  • if you have problems with starting files from USB (especially if you know that the USB drive was used as a boot disk or was handled by a utility like 'Partition', etc.), format USB drive (file system should be used FAT-32) and repeat updating procedure;
  • it is recommended to use firmware (provided by drive manufacturer) formatting utilities;
  • it is recommended to use USB dongle of well-known brands (Transend, Sandisk, Kingston, etc.).
• Try another USB drive.

2. When upgrading from Bootloader menu, STB starts bootstrap file, but does not start receiving imageupdate file or downloading did not end successfully:

• Check name of imageupdate file. You may need to replace imageupdate file and try the update again.
• Probably, problems with USB-drive - see item 1.

3.'Wrong signature', 'Unsupported architecture' - Probably, you use not appropriate type of image.

• Make sure that imageupdate file matches your STB model.
• If you are not sure about source of update files, re-download it, replace file on USB-drive, and then try to update again.
• Make sure that imageupdate file contains Public image. If needed replace file on USB-drive, and then try to update again.

Update from Bootloader using Multicast

Multicasting update is performed from the Bootloader menu. This update method can only be used to install the public software versions of the required STB model, those are located in the STB software release or created by user independently according to the instructions of the STB manufacturer.
The following utilities can be used as a means to multicast update files on the local network:

• for Linux OS - mcsend utility. This utility is part of the Operators Utilities for building STB software image. Description of the utility is given in the document Operator_Guide_MAG200.pdf.
• for Windows OS- Mcast utility. Below description is concerned the Mcast utility.

Requirements to Windows OS: Any version OS Microsoft Windows with support .NET Framework 2.0 version and higher.

Preparing

1. Download imageupdate and Bootstrap files, which will be streaming from PC to STB by multicast, similarly to described update with USB drive.
2. Download, unzip and launch MCAST-V2.0. (zip) application on PC.
3. To ensure IGMP and multicast traffic pass through, it is necessary that PC and STB are in the same broadcast domain. Otherwise it is necessary to provide routing for multicast flows on the required network division. It is usually sufficient to use a direct cable network connection between STB and PC or they both must be connected to the same switch / router (in the the last case, the STB and the PC must be connected to the switch / router with wire connection).

Multicasting from PC with Mcast utility

Mcast utility must multicast two streams: stream 1 - Bootstrap file, stream 2 - imageupdate file.

• Run Mcast utility. This activates the form QueryUserForNetworkInterface.
• Select the required network interface to multicasting;
• On the main utility form Multicast file streamer v2.0 for each of the two streams (Bootstrap and imageupdate), you must specify:
  • File name - the location of the file on the PC (the files must be downloaded to a specific folder of the PC in the preparation phase);
  • IP-adress, port - IP-address and port to which streams data. These values depend on the STB model. For more information, see Multicast stream addresses.
• Click Start button for stream1 and stream2.

Start multicast upgrade on STB

• Enter Bootloader menu;
• Select Upgrade Tools ⇒ MC Upgrade. STB goes into the mode of receiving and activating the Bootstrap file.
• The multicast IP-address and port on which the STB expects to receive data will be displayed on the TV screen. Compare it with data that was set in msast utility for stream1 (see IP-adress, port option). If they are not equal then correct this value in utility.
• The progress bar on TV screen must be moving - it informs about receipt of the multicast stream.
• If Bootstrap file is successfully received then approapriate message will display and STB automatically switches to receiving and activating the imageupdate file;
• In case of successful receipt of both files, the update procedure will be successfully completed and the updated STB software will be run.

Multicast stream addresses

Address for multicasting of Bootstrap and imageupdate streams in Mcast depends on STB model.

Multicast-update process takes no more than 15 minutes. Successful upgrade finishes by STB rebooting and installing new version software. If updating does not end (due to erroneous settings, network interference, etc.), STB does not exit Multicast updating by itself. To exit Multicast-update mode should reboot the STB.

Multicast update example

Example of Multicast updating for STB MAG250 is below.

Example:

Select the network interface (active network interface);

Specify parameters for each of streams: 'File name', IP-adress, port. Stream 1 - Bootstrap, Stream 2 - Imageupdate.

Compare Bootstrap address in MCAST and Boot loader: for various STB it may differs.

Run streams 1 and 2.

• Wait till update is completed. Updating process displayed at the TV screen. After updating is complete the STB will be automatically rebooted.