Thanks Reuben.
I tried to execute other UBLOX AT COMMANDS and it seems that eventhough you see ERROR in the Arduino’s Serial Monitor, and not seeing the supposed “returned values” from UBLOX, the commands are nevertheless executed properly. I encourage others to just continue with the AT Command execution and see the end result in the Mobile/Server side. This is while waiting for the new API as promised by Hologram.
For those trying to change the APN setting via AT Commands, try the codes shown below. You will encouter ERROR when executing AT+UPSDA=0,3… but as I said, it is actually executed at UBLOX. I saved the APN setting in the Non Volatile Memory of UBLOX to make it permanent and never set it again during normal operation.
