Why do I need to reconnect my phone with GPS even though I have already saved its setting in the GPS?

It is a rule that you have to connect every time you like to access the GPS data through your mobile phone. The reason is simple because GPS service will start its functions from the exact current location of your mobile phone. Actually, GPS system start data collection from the current position at the time when the mobile goes to live then the GPS system compares the collected data from the starting point with the next GPS point or hotspot. As you change your location then the GPS system will also follow your footprint so, you will never be unchecked in your approach. Basically, GPS system works like a spy behind your movement. It always keeps watch through your mobile. So, it is a natural approach to reconnect your mobile phone with GPS system every time, you power on your mobile phone. You should also save your GPS settings in Garmin gadget. It also needs to synchronize your mobile with Garmin GPS system. Sometimes, if the GPS signal could not penetrate through any obstruction, then you will get this type of data disturbances. So, you will get this problem if you don't synchronize your mobile well with the Garmin GPS system.