Hi everyone, I bought a used 1.1.1 off of eBay and I'm having some troubles with it. Whenever I power it on it completes the warm up and then I get the slow flashing yellow light sequence, I think this means it is ATTI mode due to no gps signal?? The rotors will spin up and I can take off but the Phantom is super hard to control and the fails age doesn't seem to function. I've connected it up to the assistant software which is a pain as the USB cable connection isn't good and requires moving into a certain position to be recognized. It wanted to upgrade the firmware. I did that and I imported the default settings. I did the TX calibration and the Advanced Call calibration. Everything looks good except for: 1. Gps hardware shows all dots, like .... 2. Compass values are always 0 3. I can't check the IOC option, it says gps needed but I'm in the house and not getting a signal. 4. I can't get it into compass calibration mode using the TX Any ideas on what might be up? Could my gps and compass both be bad? Would you recommend I open and check all the connections? Thanks.