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The HMD Touch 4G is a hybrid phone that blends a touchscreen with classic feature phone simplicity, offering cloud services, video calls via the Express Chat app, and 4G LTE support.
A detailed blog post about unlocking the bootloader and modding the Kyocera KY-42C feature phone, which was considered unrootable after a firmware update. The author investigates MediaTek boot process and exploits.
Blåmba is an open-source re-implementation of early 2000s ringtone and multimedia providers for cellphones, supporting modern web and WAP access. It also includes a talk from the 38th Chaos Communication Congress covering the technical background.