System recovery

This task includes the following steps:

• Activate recovery mode

• Find your device

• Recover the system

To reset the hardware to factory settings, for example if you forgot your password, see the related knowledge base article.

To backup and restore your application settings, see the related help page.

Activate recovery mode

• Power on the device for approximately 5 seconds (wait until the power LED turns on), then power it off again. Repeat this step three times.

  On the fourth time, let the unit boot normally.

• The device will enter recovery mode once the power LED blinks, which should take approximately 10 to 15 seconds.

Find your device

Once the system is in recovery mode, DHCP is enabled for both Ethernet interfaces.

• If your FP-I4C unit is connected to an Ethernet network with a DHCP server, you can find out the unit's IP address with the HMWIN Studio software. See Connect the FP-I4C unit to a PC via DHCP server.

• If your FP-I4C unit is connected directly to your PC, you need to set the IP address in your PC:

  In Windows, go to Network Connections and select your Ethernet network. On the Network tab, select Internet protocol, Version 4 (TCP/IPv4) > Properties. Select Use the following IP address and set the IP address.

  • IP address: 169.254.x.x, e.g. 169.254.10.100
  • Subnet mask: 255.255.0.0
  • (Settings for default gateway and preferred DNS server not required.)

  Use HMWIN Studio to find the FP-I4C unit. See Connect the FP-I4C unit to a PC via DHCP server.

Recover the system

Depending on the cause of the fault, you must recover either the main operating system or the data partition. Recover the main OS if you have encountered issues with the operating system. For issues with applications, recover the data partition.

The necessary recovery files are included in the latest FP-I4C BSP update and the FP-I4C firmware update, available in the Download & links section.

• Recover the main OS:

  Download the latest FP-I4C BSP update.

  Go to Management > Main OS > Update.

  Click Update, go to \BSP USB autoupdate\src in the zip file and select the files un74-pa18-mainos-x.x.xxx.rootfs.tar.gz and un74-pa18-mainos-x.x.xxx.rootfs.tar.gz.md5.

• Recover the data partition:

  Download the latest FP-I4C firmware update.

  Go to Management > Data > Update.

  Click Update, go to \Software Package\Data Partition (read README.txt) in the zip file and select the files data.tar.gz and data.md5 from the zip file.