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Switch off the meter and switch on again to check that the firmware update was successfully
achieved
8.3 Replacing the Firmware SD card
In some cases it may be necessary to replace the SD card holding the CPU firmware version:
1. Open the back lid of the instrument
2. Gently push the cover of the SD card in the direction shown below
3. Take out current SD card and put the new one instead, make sure it fits the slot.