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+# Quectel EC25 LTE Modem
+
+This is **not** a simple configuration and requires a lot of potentially dangerous changes to your system. The Quectel EC25 modems need a package from the ```testing``` Debian apt tree which is not available on ```stable``` or ```stretch```. Having multiple trees setup at the same time on Debian can quickly de-stabilize your Lollipop can cause strange problems.
+
+Only perform these steps and operations if you *must* have a Quectel EC25 and cannot find a modem that's supported by default by Debian ```stretch``` or Debian ```stable```.
+
+# Inspiration / Further Reading
+
+- [http://www.embeddedpi.com/documentation/3g-4g-modems/quecetel-modem-gps-setup](http://www.embeddedpi.com/documentation/3g-4g-modems/quecetel-modem-gps-setup)
+- [http://www.embeddedpi.com/documentation/3g-4g-modems/mypi-industrial-raspberry-pi-3g-4g-modem-howto](http://www.embeddedpi.com/documentation/3g-4g-modems/mypi-industrial-raspberry-pi-3g-4g-modem-howto)
+- [http://www.embeddedpi.com/documentation/3g-4g-modems/quecetel-modem-gps-setup](http://www.embeddedpi.com/documentation/3g-4g-modems/quecetel-modem-gps-setup)
+- [https://git.lollipopcloud.solutions/lollipop-cloud/docs/src/branch/master/hardware/gps.md](https://git.lollipopcloud.solutions/lollipop-cloud/docs/src/branch/master/hardware/gps.md)
+- [https://www.cnx-software.com/2018/02/11/how-to-use-3g-and-gps-on-raspberry-pi-with-thaieasyelec-3g-hat-expansion-board/](https://www.cnx-software.com/2018/02/11/how-to-use-3g-and-gps-on-raspberry-pi-with-thaieasyelec-3g-hat-expansion-board/)
+- [https://blog.enchose.com/raspberry-pi-runs-ppp-dial-up-quectel-ec25-lte-modem/](https://blog.enchose.com/raspberry-pi-runs-ppp-dial-up-quectel-ec25-lte-modem/)
+- [https://www.quectel.com/support/faq.htm](https://www.quectel.com/support/faq.htm)
+- [https://osmocom.org/projects/quectel-modems/wiki/EC25](https://osmocom.org/projects/quectel-modems/wiki/EC25)
+- [https://truetechembedded.blogspot.com/2018/03/quectel-ec25ec20-software-porting-guide.html](https://truetechembedded.blogspot.com/2018/03/quectel-ec25ec20-software-porting-guide.html)
+- [https://www.quectel.com/UploadImage/Downlad/Quectel_WCDMA&LTE_Linux_USB_Driver_User_Guide_V1.8.pdf](https://www.quectel.com/UploadImage/Downlad/Quectel_WCDMA&LTE_Linux_USB_Driver_User_Guide_V1.8.pdf)
+- [https://sixfab.com/updated-tutorial-3-make-a-ppp-internet-connection-with-3g-4glte-shields-on-raspberry-pi/](https://sixfab.com/updated-tutorial-3-make-a-ppp-internet-connection-with-3g-4glte-shields-on-raspberry-pi/)
+- [https://sixfab.com/product/quectel-ec25-mini-pcle-4glte-module/](https://sixfab.com/product/quectel-ec25-mini-pcle-4glte-module/)
+- [https://sixfab.com/gps-tracker-with-3g-4glte-shield/](https://sixfab.com/gps-tracker-with-3g-4glte-shield/)
+
+
+
+
+
+
+
+
+
+
+# Setup Apt Repos
+
+See the ```advanced/debian_multi_repo.md``` documentation and setup the ```testing``` apt tree at a minimum. 
+
+Once complete, continue. *The Quectel EC25 will **NOT** work without this step being complete.*
+
+# Setup LTE/3G/etc Support
+
+``` bash
+
+apt-get update
+apt-get install -t testing libqmi-utils
+systemctl reboot
+
+```
+
+# Setup NetworkManager/ModemManager
+
+After rebooting in the previous step the modem should work 100% with our standard NetworkManager and ModemManager docs. Head over to them for your appropriate distribution for final setup of the modem internet connection.
+
+# Setup GPS (Optional)
+
+Prior to setting up GPS make sure you have an antenna connected to the EC25. We've had reasonable success with this one: https://www.mouser.com/ProductDetail/673-GPSMOD1333
+
+## GPS Tools (Per lollipop cloud docs)
+
+``` bash
+
+apt-get install picocom gpsd gpsd-clients python-gps gpsbabel
+
+```
+
+## Setup / Testing GPS on Quectel
+
+``` bash
+
+tmux new -s gps testing
+picocom /dev/ttyUSB2 -b 115200
+    AT+QGPS=1 # Turns on GNSS module
+    AT+QGPSEND # Turns off GNSS module
+    AT+QGPSCFG="autogps",1 # Enable GPS whenever module comes online
+
+picocom /dev/ttyUSB1 -b 9600
+
+systemctl stop gpsd.socket
+gpsd -n -N -D 3 -S 2948 /dev/ttyUSB1
+gpsmon 127.0.0.1:2948 # more reliable with quectel gps for some reason (may need to work WITH cgps)
+cgps 127.0.0.1:2948 # the "usual" way we like to monitor gps status
+
+```
+
+## Setup gpsd defaults for the EC25
+
+``` bash
+
+/etc/default/gpsd # Add /dev/ttyUSB1 to device
+                  # Add -n -D 3 to options (for debugging)
+
+```