Q: How to restore Firmware and /or a Configuration on the SD card.
“Normal” procedure:
When a SD card has “died”, the password has been forgotten or installing more Data Loggers with the same configuration, installation or “emergency repair” can be done directly on a new SD card.
Pre required:
- Windows PC (or Lap-Top) with USB port, USB cable, SD card slot and YdocTerminal installed
- Fresh, formatted SD card. (Maximum supported size is 32 Gb)
- A working Data Logger configuration, downloaded to the Windows PC or a backup configuration available on the PC
- The latest firmware version, to be downloaded from our website on the Windows PC
T: If no working configuration is available, build a configuration file on a working Data Logger and download it (using YdocTerminal) to your Windows PC. Use this configuration to restore.
Get the Latest Firmware from our website and download it to your Windows PC.
Insert a fresh SD card into your Windows PC SD card slot and format the card.
Place the (backup or previously build) configuration file on the SD card (root directory), named “erase.cfg” and the firmware file named “restore.bin”.
Disconnect the SD card from Windows file system (Remove device safe), and remove the SD card from the PC card slot.
Ensure the Data Logger is powered off and insert the SD card into the Data Logger.
Power up the Data Logger and connect a USB cable (using YdocTerminal), confirm the data logger has booted and check the restored configuration.
C: Information on SD cards, check Chapter “SD card” in the Data Logger Manual.
“Expert” procedure:
T: When the normal procedures are failing, there is an option to manual boot, erase (and load) the config and install a firmware file. (Also applicable to the ML-525xx series)
Pre required:
- Windows PC (or Lap-Top) with USB port, USB cable and YdocTerminal installed
- The latest firmware version, to be downloaded from our website on the Windows PC
- Jumper
- Access to the option board connector, if option boards are installed, they must be removed
Open the data logger housing.
Remove the (red and black) power cable.
Remove all option boards (if mounted).
Place the jumper on the 2nd row, counted from the metal option board spacer.
On the Windows PC or LapTop:
Download the latest firmware version and if available, find and remember the location of the (backup) configuration file, or build a configuration file as explained in the “normal ” procedure.
Open YdocTerminal.
Now, restore data logger power by placing the red and black cable on the power connector.
In YdocTerminal, from tab File -> New -> COM port terminal (select the ydoc device).
The terminal screen opens and the bootloader menu will show up.
Remove the jumper.
From bootloader menu:
Erase the existing configuration file (to rule out a corrupted configuration) by pressing “E”.
After the erase has completed, press and hold “U” until a file selection pop-up screen appears.
Select the desired firmware file.
The selected firmware file will be loaded and written to flash memory.
After completing the flash restore, the data logger will automatically reboot with the loaded firmware.
At this point, re-install the option boards (if previously mounted).
The configuration can be rebuild or restored using “Maintenance” menu.