New here, 3 basic questions, please help to learn

Dear community,
I just found about Fairphone and trying to understand more,
looks fascinating, have the next 2 initial queries, (I am learning),

1.-For Example, can I remove “modules” as the camera and the phone still would work fine? or can I connect external sensors to the motherboard? ,
2.-Is it possible to try to install GrapheneOS? <<edited. Not possible
3.- Regarding the battery, let’s suppose I find a smaller battery but same or similar technical specs as voltage/ampers…etc, is it possible to connect to the motherboard?

hope someone can give some advice on these topics,

thanks and best regards,
Luis

Hello,

For the first one, probably yes, because remove the module is like a faulty module. I don’t think Fairphone as implemented an Apple like obsolescence technology to soft block the phone. But you will lose some functions, it will became less a “smartphone” and more of a Single Board Computer.

For Graphene no, the main developer wouldn’t want to make a port due to Fairphone not giving security update a week maximum after the publication by Qualcomm or Google or the concerned manufacturer and Fairphone don’t have a dedicated cryptographic chip.
But you can make your own port of Graphene or just use CalyxOS or /e/OS or iodé or Lineage…

For adding new things, it’s possible but it’s not a Raspberry pi with dedicated analogic IO so you have to understand electronics and take the risk of destroying the motherboard if you do a mistake. And also understand android to be able to read the sensor
If you really need a specific sensor, I think it’s simpler to find this sensor in USB or Bluetooth and develop an app to read the value of the sensor.

I don’t know what is your projet but I advise you to start with a Raspberry Pi, an Anduino or any SBC with IO ports (and some of them are Android compatible).

And also, for Android developments, go to XDA forums.

Did you have a look at DivestOS? There are some caveats!

https://divestos.org/

hi Justin,

Many thanks for your response,
it is super accurate,

since I recent joined here, I hope I can contribute also,

kind regards
Luis