I have a Pro 6 Plus and my current GPS.CONF file is:

NTP_SERVER=pool.ntp.org
XTRA_SERVER_1=http://gllto1.glpals.com/7day/v4/latest/lto2.dat
XTRA_SERVER_2=http://gllto2.glpals.com/7day/v4/latest/lto2.dat
SUPL_HOST=supl.qxwz.com
SUPL_PORT=7275

My GPS has a lot of problems giving the wrong location, takes a long time to synchronize, as well as losing the connection all the time.

My wife has a Pro 6 and I was able to make the change from:

SUPL_HOST = supl.qxwz.com

To:

SUPL_HOST = supl.google.com

Now it's working very well and I did not have to ROOT, I've used this app:

https://play.google.com/store/apps/details?id=com.themonsterit.EngineerStarter

I would like to know if there is any way to change the SUPL_HOST of the GPS.CONF file without having to ROOT for the PRO 6 Plus as well.

Thank you!