How download and charge in offline mode works

[samsim]

Hi All!

I wondering if somebody could write down how the download mode (Odin flash), recovery, battery charge works in the phone?

I mean where the codes which are processing these things are stored on phone. Are they in same unerasable rom or are they in accessible media which can be overwritten?

What are the steps that the device do what is executed first and then and so on...

Somewhere I read that there is a battery driver in phone it guards the charging process if the phone is switched off and that is used in same custom kernel now in powered on mode to. So I wonder if there is a custom linux kernel embedded in phone with basic functionality or is it rater like a PC BIOS without the complexity of the complete kernel?

Is there a faq howto about this things somewhere? I can't find it. I would like know only the basics not the complete process written in pure technical form :-o

Thanks.

[darth_llamah]

Everything you need to know is in the first post of Helpdesk thread.

[samsim]

Everything you need to know is in the first post of Helpdesk thread.

Thanks. I read through it more than one time but I can't find anything about how the phone actually boot in download mode or what code where is executed if the phone is switched off and I plug in the charger. If I see right there are only things about how to flash gain root access change theme some technical terminology and so on... These howtos are really a help I made my phone boot samdroidmod from kitchen and I have to thank to peoples for the lots of explanation howtos faqs and LeshaK to code it write it down and so on... But I really can't find answers here about how this things works. If you would so kind to point me to somewhere specific I would thank you for that. Or your reply is just about I shouldn't care how this things works just use it :-o ?

[darth_llamah]

I can't find anything about how the phone actually boot in download mode or what code where is executed if the phone is switched off and I plug in the charger.

Download mode and "switched off charging" is hardcoded in bootloader - it is closed source so only option is disassemble it (if you have proper knowledge)
Unfortunaltey it's only one of all closed source solutions in Spica which must be used.

[samsim]

Download mode and "switched off charging" is hardcoded in bootloader - it is closed source so only option is disassemble it (if you have proper knowledge)
Unfortunaltey it's only one of all closed source solutions in Spica which must be used.

I see thank you!