Advanced Updating

​Download the image.bin OS kernel for manual updating.

Updating just the OS

WARNING: Insure that reliable power is available before attempting the upgrade. A power interruption during the upgrade process could render the 825 inoperable and require return of the 825 to the factory for reprogramming!

1. Make sure the 825 is powered off. Remove the four acorn nuts securing the bottom access cover and remove the cover to reveal the USB and network connections.

2. Turn on your 825. Select "Application Mode". Wait for the "Application Menu" to appear.

3. If the "File Manager" option is not present in the menu select "Configuration". The display may prompt for a login. If the login has not been changed use the default administrator login: "ADMIN" and "81440". Select "Configure menu". Select "Enable/Disable? menu items". Select "File Manager" and press "Y" to select "Yes" to include this in the menu. Press "ENTER". Press the "Left arrow" navigation key twice to return to the "Application Menu".

4. Insert the USB flash drive previously configured for 825 updating. Be careful to insert it in the correct orientation into either of the USB slots.

5. Select the "File Manager" option in the "Application Menu". The display may prompt for a login. If the login has not been changed use the default administrator login: "ADMIN" and "81440".

6. Press "P" for paths to select the paths for the file manager to display. At the "1:" prompt type: "/mnt/fl1" (without the quotes - press "SHIFT" twice to lock in lower case mode). Press "ENTER". The left side of the display should show "/mnt/fl1" and the contents of your flash drive. If the files do not show the path may have been typed incorrectly. Repeat the previous step. Press the "DOWN" navigation key repeatedly until the OS file "image.bin" is highlighted. Press "ENTER". The display will show "Are you sure you want to flash selected files. - Confirm No". Press "Y" to select "Yes" and press "ENTER".

7. The display will show "Update FLASH" and prompt whether to replace the existing OS version with the version of the image.bin file. If the version number is correct press "Y" to proceed.

8. The display will show "Erasing" and then count through all records as the file is being programmed. This may take a few minutes. When finished the display will show "Done". Press "ENTER". The file manager will return. Press the left navigation key until the display shows "Return to Startup?". Press "Y" and "ENTER". The display will show "restarting" and the startup screen should show with the correct "OS" version that the indicator was updated to.

Manual Reinstall of the OS

In case the OS is not functioning it may be necessary to perform an upgrade of the OS using a local network connection to a PC. If the existing OS is not functional it is not possible to use a USB flash to reinstall the OS. To update the 825 Linux kernel a tftpserver is required. Several tftp server programs are available. One that may be used for windows is tftpd32 ​http://tftpd32.jounin.net/.

1. Set up the tftpserver on your Windows computer. If you are using tftpd32 the default settings should work. It may be best to disable the additional server options, and only leave tftp enabled. Make sure the directory is set to the path that you have copied the “image.bin” file to.

2. Make sure the PC running the tftpserver and the 825 indicator are connected on the same network. It may be possible to use a crossover cable and only have the PC connected directly to the 825. It is preferable to use a simple network switch to connect the devices. This eliminates the problem that the PC may detect loss of entire network whenever power is removed from the 825.

3. Turn on the 825 indicator.

4. Select “Setup Menu”, “Communication”, and “Network”. Set “DHCP” to “No”. Set the “Client IP” to an IP address that is not in use by any device on the network, but similar to the PC address. For example if the PC address is “192.168.0.5” you may set the 825 to “192.168.0.8”. Set the “Netmask” to the same netmask as the PC, which is often “255.255.255.0”. The “Gateway”, “Broadcast”, and “Nameserver” may be set to “0.0.0.0”. You may verify the Windows PC settings by clicking “Start”, “Run” and type “Cmd”. At the command prompt type “ipconfig”. Press “ENTER” on the 825 to save changes. Press “ESC” to exit the “Communications” menu and return to the “Setup Menu”.

5. Select “Update Software Menu”. Select “Settings”. Set the “Server IP” to the IP address of the Windows PC running the tftpserver. Set “File Type” to “3” or “bin”. Set the “Filename” to “image.bin”. The prompts “1.” Through “6.” Allow a kernel command line to be specified. For example, if you want kernel messages to appear on COM2 to set “1.” to “console=ttyS1”. (“console=null” suppresses kernel messages, or blank provides kernel messages on “COM1”) Press “ENTER” to save changes.

6. Make sure everything is configured correctly and select “Download kernel to flash”. A warning message may appear. Press "Y" to proceed. The display will show “Downloading Image ‘image.bin’ from 192.168.0.5 (or the appropriate IP address of the server). This may take a few minutes as the kernel is downloaded into RAM. After a brief delay the display will show “DO NOT UNPLUG OR SWITCH OFF POWER”. The NOR flash area to contain the kernel will then be erased and the kernel will be written to flash. This may take several minutes. The display will show “Power off and back on”. (Older versions of the bootloader may show “Press any key”, but still require a power off and on).

7. Power off and on the indicator.