A wrong or not completed firmware update can be restored as follows:
Now the device should work properly again.
A wrong or not completed firmware update will make sure that your meter will not boot. By following this instructions you can reset your SPECTRAN after a bad firmware update to its default configuration. Please follow the instructions exactly.
Unplug the charger from the SPECTRAN first. To disconnect the battery in the device, it must be lifted carefully with a screwdriver. It is important that the front edge of the battery is over the plug. So it is possible to pull the plug backward under the battery in the next step (see Figure 1).
Unplug the battery from the board requires some dexterity. (the same applies when inserting).
Hold with one hand the raised battery. Now take the screwdriver and push the plug from the socket under the battery. If the plug is completely disconnected from the socket, the cable can be attached on to the battery (see Figure 2).
Download now (if not already done) the firmware-updater and unzip it into any directory. Open the "exe" file and the updater will start. On Windows Vista / 7 systems, an administration dialog can appear. In this dialog you have to click the "OK" button.
After starting, the updater should identify your SPECTRAN devices automatically. Please click the "Perform Firmware Update" button to start the update process and follow the instruction of the updater.
Important: Use only the firmware-updater!
If the process is complete turn on the unit and press directly the MENU button and then the CLEAR button.
At the end of the updates you must perform a factory reset. Go to your SPECTRAN menu and select the entry "Setup". Then select the item "Factor" and confirm with the ENTER key.
The device should now work properly.
Finally, connect the battery and close the battery compartment.