I've had a cheap 18650 flashlight for some time now - when turning it off and on, it cycles through five modes - full power, medium power, low power, strobe, SOS signal.
I'd like to disable that feature and just use it in full power mode whenever I turn it on.
I assume the "HL6S2" component controls those modes, but I couldn't find any useful information on that.
Positive power comes through the via near the red lead. Ground is on the perimeter of the chip. The flashlight is turned on and off via a switch on its back, which connects the case to the battery ground, so the IC seems to have some sort of memory to retain its information for prolonged periods of time.
I assume the IC switches the left leg (connected to the blue lead via two 500 Ohms resistors in parallel) to ground, which is on its middle leg. Does anyone have a datasheet for this chip? Searching for the markings wasn't very helpful.
To mod it, I'd remove the IC and solder a bridge from the left to the middle port - does that sound reasonable?