Is it possible to upload your build to a phone with android?

Question

Android

I don't even know what tags to choose for the question. I want to know. is it possible to make firmware and download instead of android? I want to try to build my software with linux kernel. I somehow tried to write software for tizen and there I saw that some kind of library was used to display ui for embedded technology. Maybe I'll use it - I don't know. but it’s dreary to do your own, but you yourself decide what should become obsolete and what should not.

Answer 1

Yes, but the ability to do this without millions of investments (development and reverse engineering) is not available for all smartphone models.
The simplest thing is to look for ready-made custom firmware adapted to your particular hardware, modify it as you like and get the result. Check out the xda-developers or w3bsit3-dns.com forums for the collective knowledge of this struggle.
And yes! Most likely you will have a lot of proprietary code copied from official firmware, otherwise you will not be able to use the hardware.
A great example is the development of bootloaders, applications that work right from the moment they are loaded. For example twrp, open source.
ps in fact, since iron manufacturers seem to have laid down their bones to make access to the specifications of everything that is peripheral (touch screen, bluetooth, wifi, radio module, camera fingerprint scanner, ...) and the main graphics core impossible, or rather non-free, to get effectively or just a working application, you may not succeed.

Answer 2

Turn on the USB debugging mode on your android device, then connect the device via a wire to your computer - you're done. After a while, android studio will detect your device