In my old smooth riding car, the B1W g-sensor worked perfectly but in my rough-riding work truck it's hopeless, same as every other cam getting beat to death in there 🙄 It doesn't help that the roads here are in terrible condition 😡
When the conditions all line up against you as they've done with me, you may have to either get used to clearing the locked files frequently or turn the g-sensor off. I just clear the files regularly as that works better for me.
Phil