Gigaset C430 Hacking » History » Revision 1

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manawyrm, 11/21/2022 02:26 PM

Gigaset C430 Hacking

The C430HX/A phones use a Dialog/Renesas SC14441 SoC, which is a fully integrated DECT handset IC, with all peripherals built in.
The firmware is stored on an external Quad-SPI flash chip (MX25U1635E), 2 MByte.

The CPU inside the SC14441 is a CompactRISC CR16c plus-architecture.


The firmware can be modded by unsoldering the SPI flash chip and flashing it in an external programmer:


Files (7)
IMG_2138.JPG View IMG_2138.JPG 759 KB Gigaset C430HX internal PCB manawyrm, 11/21/2022 02:12 PM
IMG_6053.JPG View IMG_6053.JPG 1.85 MB MiniPro TL866 programmer, with ZIF socket manawyrm, 11/21/2022 02:12 PM
xocetzhvijs.png View xocetzhvijs.png 16.8 KB Ghidra memory map setup manawyrm, 11/21/2022 02:38 PM
cgpmjvoeitb.jpg View cgpmjvoeitb.jpg 398 KB C430, showing the custom "nyan" ringtone manawyrm, 11/21/2022 03:10 PM
wqdiyzjfpvk.png View wqdiyzjfpvk.png 9.56 KB Hex editor, showing the string literals for all ringtones manawyrm, 11/21/2022 03:12 PM
hgtedmkcrfq.jpg View hgtedmkcrfq.jpg 2.95 MB battery voltage and current, stock firmware manawyrm, 11/22/2022 01:38 AM
dwbaefchmtk.jpg View dwbaefchmtk.jpg 2.81 MB battery voltage and current, modded firmware manawyrm, 11/22/2022 01:38 AM

Updated by manawyrm over 1 year ago · 1 revisions

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