Orange-PI-4G-IOT Ubuntu installation issue

vishalmote

I have few questions and doubts need to be cleared before proceeding on installation. I have read full installation guide mentioned on below url user manual given on official site for ubuntu OS as well as android OS

https://drive.google.com/drive/f ... NWLctmlOAkABvdzWCuV

1) Can I install back android on device once I installed ubuntu?
As there is clearly point mentioned in android installation user manual 1.4 on page 17 not to format all

It you select Format All, you will lose the calibration information which we worked before sending
out products. If this situation is inadvertent, please contact the Orange Pi service and obtain the
calibration parameters through the machine code, and re-flash the calibration parameters.

And while installation for ubuntu requires format all as per ubuntu installation guide. So repeating question again, can I install back android on device if I install ubuntu on it or failed to install ubuntu.
or do I have to approach you for calibration paramaters setup for reinstalling android OS.

2) Does ubuntu prebuilt image by you on given in below url supports HDMI output AND does it has desktop version or server version?

https://drive.google.com/drive/f ... uDPTh2EAYXX_IiTIWk7


3) Once Ubuntu installed then can I use 4G, GPS, WIFI, Bluetooth features of device on ubuntu os?
Please provide any documentation for that to activate these modules or driver setup for these modules on ubuntu OS.

It looks android is not much helpful for IOT projects, so can we get more support and documentation on ubuntu OS.