Hi guys, First time poster here but I have been lurking and taking in everything you guys have to offer. I have had my P3S for a few months now, and it has been a great flier. I have taken it out to about 500m easy and I have no problem really pushing it's limits. A few weeks ago, I noticed the cracks around all the motor mounts So, I sent it back to DJI, and they replaced the shell. I got it back the other day, and after relinking the remote, it looses signal like crazy. For example, it will be hovering at maybe 200', about 50' from me, and will have a strong RC signal, and out of no where, the signal will just drop to low and sometimes drop. Moving the seems like it helps, but I am not sure. I have around 30 flights with this thing, so I would like to say I am fairly use to how it should act and how the antenna needs to be positioned, but it really seems like after coming back from service, the RC signal is a major issue that was not there before. Do they update firmware while it is at the factory? Should I take the shell off and take a look inside? Firmware is v 1.6.80, but I do not know what it was when I sent it back about 3 weeks ago. Any savvy tips from the pros here? Thank!