There's something to be done there, option 4 or the momentary option.
I think I read something about that.. just a minute, let me get my google Fu warmed up
ok, ready? the answer is a Factory Reset, not option 4 afaict, it seems to have to do with Option 8 Tactical Momentary.. thanks for helping figure this out.. I suggest you read the manual and see what you think
lets solve this problem together
Here is what I think Ive learned so far, but have no hands on experience.. so I defer to those who do
this is the readers digest paragraph: IF Bigburly912's 120T does have the Tactical Momentary mode turned on, then YES, that does prevent him from enabling option 9, the fix is a factory-reset.
reading from the HDS manual:
"Option 8: Tactical Momentary
The Tactical Momentary option provides a pure momentary mode of operation – i.e., when the button is pushed the light is on and when the button is released the light is off. Therefore, you must make any desired configuration changes before enabling the Tactical Momentary option. If the Automatic Button Lock option is enabled, the button locks upon enabling the Tactical Momentary option and your light remains dark when the button is pressed. Further, upon releasing the button lock, your light remains off until the button is pressed again.
Note: performing a soft-reset will force the button to lock when both the Tactical Momentary option and the Automatic Button Lock option are enabled.
You disable the Tactical Momentary option by performing a factory-reset. The default setting is disabled.
The Tactical Momentary option is the eighth item in the Option menu and is identified by two short flashes followed by a long flash."
"Resetting Your Light
You must perform a reset to disable Tactical Momentary after it is enabled, to enable brightness level ramping and the Option menu after they are disabled, to restore factory settings or when you change the type of batteries you are using. A reset can also be used to regain control if your light ever gets into an unresponsive state."
"Factory-Reset - restores your light to factory settings, including disabling Tactical Momentary, enabling brightness level ramping, enabling the Option menu and detecting the type of batteries installed. Perform a soft-reset but while the dim light is on, press and hold the button for 10 seconds until your light turns off. Identified by 5 seconds of bright light, 3 seconds of dim light and 2 more seconds of bright light. The settings are now restored to the factory defaults.
If you release the button during either of the brighter periods, your light displays the error flash sequence consisting of 6 rapid flashes and your light will not modify the settings."
"Soft-Reset – fix an unresponsive state or part of a higher level reset. If your light is working normally, turn your light on and unscrew the battery case until the light goes out, count to three and then screw the battery case back together. If your light is in an unresponsive state, remove the batteries for 2 minutes and then reinstall them. Identified by 1 second of dim light. Does not change your settings.
Battery-Detect-Reset – required to detect battery configuration changes. Perform a soft-reset but while the dim light is on, press and hold the button for 5 seconds until your light dims. Release the button when your light dims. Identified by 5 seconds of bright light followed by dim light. Does not change your settings.
If you release the button during the brighter period, your light displays the error flash sequence consisting of 6 rapid flashes and your light will not detect the battery configuration."