Hello! I gave the phone to the service, and there found problems with GPS. they did a software update and outdoor was to communicate with the satellites.I compared the GPS on this phone with the phone Sony Xperia ST21 Dual, which are about 20 satellites, and it turned out that my Xperia C3 catches for 10% less than the signal.My ST21 sees about 20 satellites and establishes a relationship with 10, and my C3 sees 32 (!) of the satellite, but establishes a connection with a maximum of 4-5 and signal strength of satellites equal to 10-12% less.as a result of position accuracy below and I can not normally use programs like "bike computer". How to improve the level of signal? or GPS-module should work well on this phone?