Hello, i have question to increase my computer understanding.
How phone bootloader work and how can i make assembly bootloader to phone ?

Is there any interrupt similar to bios ? Is it more easy to found open source components ?
Are there any similar website to osdev for phone programming ?

Let’s start with the fact that smartphones are not limited to one particular hardware platform, so in the absence of an OS (which is the case for osdev) there might be different ISAs and rules.

When you choose particular model or platform, the information is there, in processor’s manuals and hardware specifications for the phone.

Okay, i see. Thanks !