Those of you who have a P3S, does this sound familiar? You get the Phantom. Excited, you do all the stuff you are supposed to do and make your first flight. It goes great! better than you had dreamed of. Then, you get the notice about doing a firmware update. You think, " This will probably make it even better" , so you do the update. And, now your P3S is a piece of junk. You can get no range. It goes RTH all the time. Even just hovering in 1 spot the signal fades in and out. The constant rth makes you want to smash the drone with a rock. Oh, and the fpv video works fine. A LOT of users are reporting this problem. Dji is certainly aware of it, but officially there is no problem. So, we are at their mercy until they do a firmware fix. It will help if everyone with this problem makes a lot of noise on the Dji website. Report it in the forums. The mods are Dji employes and report to HQ.[ModEdit: this forum or it's staff are in no way part of DJI] The more people who report it, the faster we get it fixed. As a workaround, I have removed the 5.8 ghz built in antenna ( will void your warranty ) , installed a pigtail with a bulkhead connector, installed where the stock antenna was, and purchased on ebay a 5.8ghz bi-directional 5 watt amplifier.It came with an antenna and a power supply.You can run it on a small gel cell motorcycle battery if you like. Pretty easy job to set up. If anyone wants to do this and needs instruction, let me know. I get over 2000 feet out and have been up to nearly 1000 feet with no signal loss and no rth. Healthydrones.com shows my signal score at 100% all the time.