Thank you, this is gold. I have discovered a couple of nokia phones in my drawer and I was wondering how the hell I could develop on them. Since then I have discovered the whole "cooked ROM" scene, which has of course died in the meantime. I hope that archive will answer my questions.
Btw, if anyone knows, is a special piece of hardware needed to flash the firmware of a nokia symbian phone?
Symbian devs had their own flashing stations/cradles but at some point it became possible to flash newer phones over USB. The software tool was called Phoenix and used regularly be leaked.
For what it's worth, I took a mobile software dev course in University, and it targeted mainly Symbian. I learned that I definitely do not want to do that. It was a painful experience.
I ended up doing mobile development anyway, but not until Qt was a viable option for Symbian.
Also, «Symbian Archive»[0,1] project has a lot of mirrors of Symbian source & software.
Here is a list of active Symbian software developers* (+ links to its projects).[2]
P.S. I'm luckily archived/mirrored LCG's X-plore[3] & ProfiMail[4] apps source repos in time when it was released into Public Domain by LonelyCatGames* team (now official repos is disabled).
[0] https://www.mediafire.com/folder/79jhy594xb3uk/Symbian_Devel...