Settingswww.megger.comDLRO2 and DLRO2X4411.7 Firmware updateThe USB port on top of the DLRO2 range is for firmware updates.11.7.1 USB memory stick format requirementsThe DLRO2 and DLRO2X are designed to work with USB memory sticks (thumb drives) that are formatted to FAT32. When a USB memory stick is plugged into the instrument and the data storage mode selected, the instrument will check it’s format. If the USB memory stick is not FAT32, the following message will appear:If an alternative USB stick is found and plugged in, the data storage mode range has to be reselected to check the format of the USB stick again before commencing a firmware update or data transfer.There are two parts to a firmware update; the first part updates the user interface while the second part updates the measurement firmware. A firmware update file may include either or both of these. Connect a USB memory stick to the DLRO2 with the firmware update file in the root directory. The DLRO2 will automatically update when the instrument is turned on if a firmware update file is found on the USB memory stick.1. Download the firmware ZIP file from megger.com2. Extract the ZIP file and copy the .bin file to the USB memory stick.3. Plug the USB memory stick in to the USB slot at the top of the instrument. Turn OFF. Wait 3 seconds and turn back ON. 4. The boot loader screen will be displayed when the instrument starts up.5. Press [OK] to upgrade firmware or [TEST] to cancel. 6. The unit will progress through various stages. 7. When complete, remove the USB memory stick. 8. Restart the DLRO2 (turn off and on).9. If a measurement firmware update is to be performed, then the measurement firmware update screen will display. At the end of the firmware update, the instrument will automatically restart.
