Phones that possess a certain level of features, below a smartphone but above a landline phone. They must also be phones which have a “brick” form factor, rather than a Flip Phone form factor. It is also expected that these phones will have a keypad for the purposes of dialing. For CPU architectures and operating systems, it is difficult to say, as older feature phones featured a large variety of obscurities, while newer feature phones almost always combine a Qualcomm ARM chip with an Android/Linux-based “KaiOS” install.

n/a

Luckily, basic and feature phones have BREW, and so, we can install third-party browsers

An example of these various ancient phones accessing the modern web, thru FrogFind and 68knews, sites normally meant for retro computers.

https://www.youtube.com/watch?v=0ZT-hUAcw98

proprietary keypad driver called sci-keypad-ext which is an extended version of sci-keypad

This phone stands out for having a physical keypad, whilst having came out in 2018. Alas, the keypad does not work in postmarketOS, probably because of it’s very weird proprietary keypad driver. However, it does boot into postmarket and actually run.

https://wiki.postmarketos.org/wiki/Finepower_F1_(finepower-f1)

Hold Accept and Power buttons to enter fastboot.

One of many devices supported by postmarketOS, this one being of note due to it being a feature phone. It’s original OS, Mocor 5, is based off of Android 4.4.2.

https://www.youtube.com/watch?v=_8_vSH3a0zs

https://wiki.postmarketos.org/wiki/Nobby_230_(nobby-230)

Nokia 6300 4G is called “basic version”

Apparently very similar to the Nokia 8000, which can run postmarketOS. Only the display panel and keypad wiring is different on this one, meaning postmarketOS can likely run on this one also.

https://wiki.postmarketos.org/wiki/Nokia_6300_4G_(nokia-leo)

It looks that most functions of postmarketOS work on this Nokia. No images or detail is available, but some minor tweaks are required to get this working.

https://wiki.postmarketos.org/wiki/Nokia_8000_4G_(nokia-sparkler)