Gigaset DECT debug adapter
What is it?
Gigaset-Debug-Adapter can be used with many Gigaset DECT phone models to access the internal UART.
It’s basically a 1.8V USB->UART converter, with switchable strapping logic and 3V step-down converter.
The device fits into the battery tray and mechanically emulates 2 AAA batteries.
The dialog-cr16c-uart-boot bootloader can be used to upload a stub to the phone through the boot ROM and access the SPI NOR flash chip.
C430 ringtone modding
- sysmocom Shop: ready to buy kits
- Hardware: KiCAD design files
- Bootloader: dialog-cr16c-uart-boot
- Gigaset C430 Hacking: OsmocomDECT Wiki