724-746-5500 | blackbox.com
724-746-5500 | blackbox.com
Page 49
LES301A user manual
Appendix B: Disable System Firmware
Appendix B: Disable System Firmware
The application program (AP) LES301A firmware can be disabled. Do this if you downloaded a wrong version of firmware that
caused the system to crash.
To disable the current version of firmware and prevent it from executing, do the following:
1. Turn off the power, open the LES301A case.
2. Short Pin 1 and Pin 2 of Jumper JP1 on the right-top corner of the main board to disable AP firmware.
3. Power on the LES301A.
4. Download the correct AP firmware to LES301A.
5. Remove Pin 1 and Pin 2 of Jumper JP1 to enable AP firmware.
6. Close the case and continue operation.
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