Charge 3 not getting GPS data from phone

[Pammyjb]

Hi

I have a fitbit charge 3  which was purchased from John Lewis last November/December as a christmas present I emailed you in May as it deleloped a fault as I could not see the display eventually you replaced it for me, the replacement has developed a fault Since send end september (  I think) looking through excerise  it will not properly connect to GPS, I select walk - start the connecting goes round at the top but it will not connect, If I just press go my phone says its connected but its not, it will says ive done a mile but when synced the phone does no longer show my route like it used to.

Ive re booted watch

Done a full watch reset

Removed watch from bluetooth from phone and re added watch to phone as if new

removed app put it back

Still no luck 

now another lockdown with a watch which will not track my walks

Just getting fed up with it 

Please give me some advise as ive tried everthing possible

Moderator Edit: Clarified subject

[AlvaroFitbit]

@Pammyjb Thanks for stopping by.

Sorry to hear that your Charge 3 isn't connecting to your phone to get GPS data from it and thank you for troubleshooting this issue. Start by checking the settings on your Charge 3 activity detection has GPS on. Also lets try refreshing the link between your phone and your tracker by doing the following:

1. Go to your phone's bluetooth settings and remove all devices listed there.
2. Restart your phone and restart your device. 
3. Check that no battery saving app/feature on your phone is affecting your Fitbit app.
4. Also, on an Android device, check that your app has the necessary permissions (settings > apps > Fitbit > permissions) and make sure bluetooth and location services (GPS) are on. 
5. You can find troubleshooting instructions here.

Let me know how it goes.