GPS broken on Copter 4.1

[grone]

GPS_DRV_OPTIONS=4 did the trick!
as seen on:

GPS CUAV is not recognized in COPTER 4.1.1

I updated my V5+ to copter version 4.1.1 and my serial GPS V2 is no longer recognized. But in version 4.0.7 it works normally, I’ve already checked the speeds of the portal and they are the same in both firmware. I even compared the parameters of both logs and found no differences. [4.0.7] Parametros X8 (v4.0.7).param (17.6 KB) [4.1.1] Parametros X8 (v4.1.1).param (16.3 KB) Nota: In both logs I didn’t do any drone configuration adjustment, I just installed the copter version to check whic…

and

GPS not detected on Matek h743-mini

Today I have installed a new M8Q-5883 GPS+Compass module on my 3" quad controlled by a Matek H743-mini flight controller. While compass got up and running, GPS was not detected. What shall I do to debug and resolve this issue? Various misc info: I was running Arducopter 4.1.0-beta7, then upgraded to 4.1.0-rc1, the behavior was identical. An identical GPS+Compass module is running OK on my other quad running 4.1.0-beta7, but that quad uses Pixracer. All GPS-related parameters are identical in …