M
Melissa WhiteAug 21, 2025
How to fix EXFO FTB-4 Pro Measuring Instruments when it does not start?
- GGerald HorneAug 21, 2025
If your EXFO Measuring Instruments unit doesn't start, consider these possible solutions: * Ensure the external power supply is correctly connected at both ends. * Replace or recharge the batteries if they are completely discharged. * Perform a hardware reset by pressing the On/Off button for at least fifteen seconds. * If the ambient temperature is below 5 °C (41 °F), wait for the unit to warm up, which may take up to 10 seconds.