I found I had a problem with my S2 switch when noticing some times in the nazam software that on the IOC control page I noticed my when flipping the switch That the blue high light would not stay in off if I took my finger off the switch on the transmitter and when it would stay on the off position just moving the transmitter would make it jump back to course. I also when playing with the switch to see what was the problem I noticed it some times was also not going in to home lock either. pulled the switch and checked it with my multi meter for continuity to make sure it was the switch and not just a lose wire some were. And it was the switch So I now think that could of been why a few times when flying all the sudden it would switch modes on me and cause erratic flying. Also notice I can make it accidentally re record my home point to. Do to it making the transmitter think the switch is being toggled quickly. and after seeing how common it seems to be that others also have had faulty s1 or s2 switches with out much use at all I can see how many could be ending up having flyway's. and if so that sure as heck cant be chalked off to user error. If DJI is just using POS switches. I build some electrical devises and have used lots of different switches and can say that that must be a real low quality switch to see so many people get stuck with a faulty switch on the DJI transmitters. Luckily I found out about my switch not working when I did BEFORE I lost my phantom. Tho as luck would have it it also was RIGHT as the hardware store closed. so I have to wait till tomorrow to get a real double throw switch to replace it with I think when I'm at it Ill replace my S1 switch before it to craps out on me at the worst possible time.