Noks: Nokia 3310 emulator written in C#

Noks: Nokia 3310 emulator written in C#

Hi folks!

I made, with AI assistance, Noks (terrible name, ik. link is the live browser demo), an emulator of the venerable Nokia 3310, a phone that has a special place to the hearts of many here, mine included.

I used Avalonia UI Framework for C# and .NET and targets all of its supported platforms, including WebAssembly.

I made this because 1.) The MAME version (Nokia DCT-3) was sadly still incomplete after years since it was made. 2.) I wanted to play Space Impact authentically and everywhere. and 3.) I wanna push how far my skills can go, together with the latest agents, when it comes to reverse engineering a black-box, sparsely documented firmware and hardware.

I've started by pulling all the docs i can get my hands on old Nokia firmware modding forums, and also the prior work that MAME and Project Blacksphere did for the DCT-3 platform back in the day.

Then did a repeated loop of poking registers, memory, seeing where the firmware stops and back-tracing how me and the clanker can get pass that blocker. I also had to contend with the missing DSP Mask ROM functions that blocked the MAME effort by checking what conditions the firmware asked and responding to its requests accordingly.

Took a couple of months of on-off work but it was all worth it.

All outward facing features are implemented like the LCD, Keys, Sound, Power and RF. including an emulation of a minimal 2G GSM network that interfaces with the DSP/Baseband layer of the phone.

Text and calls were functional from my local tests using a P2P network called Waku but somehow it's broken again on deployment.

It is as fickle of a network as the real one did back in the day ;)

And the configuration panel is also bit of a jank work, UI-wise, but it does the job... for now.

Hope you'll find joy in playing with the emulator as much as i did in making it!

Source code here: https://github.com/jmacato/Noks

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Special shout out to a fellow Nokia emulator dev and friend u/747djr !

u/jmacato — 19 hours ago
▲ 35 r/moderndotnet+1 crossposts

My Nokia 3310 Emulator in C#/Avalonia!

Hi folks!

I made, with AI assistance, Noks (terrible name, ik): an emulator of the venerable Nokia 3310, a phone that has a special place to the hearts of many, mine included. I used Avalonia and targets all of its supported platforms, including WebAssembly. It's all in pure C#/managed code goodness too! No unsafe code or pointers!

I made this because 1.) The MAME version (Nokia DCT-3) was sadly still incomplete after years since it was made. 2.) I wanted to play Space Impact authentically and everywhere. and 3.) I wanna push how far my skills can go, together with the latest agents, when it comes to reverse engineering a black-box, sparsely documented firmware and hardware.

I've started by pulling all the docs i can get my hands on old Nokia firmware modding forums, and also the prior work that MAME and Project Blacksphere did for the DCT-3 platform back in the day.

Then did a repeated loop of poking registers, memory, seeing where the firmware stops and back-tracing how me and the clanker can get pass that blocker. I also had to contend with the missing DSP Mask ROM functions that blocked the MAME effort by checking what conditions the firmware asked and responding to its requests accordingly.

Took a couple of months of on-off work but it was all worth it.

All outward facing features are implemented like the LCD, Keys, Sound, Power and RF. including an emulation of a minimal 2G GSM network that interfaces with the DSP/Baseband layer of the phone. Text and Calls were functional from my local tests using a P2P network called Waku but somehow it's broken again on deployment.

It is as fickle of a network as the real one ;)

And the configuration panel is also bit of a jank work, UI-wise, but it does the job... for now.

Hope you'll find joy in playing with the emulator as much as i did in making it!

Source code here: https://github.com/jmacato/Noks

noks.vercel.app
u/jmacato — 19 hours ago