: Start with a "clean slate" to avoid unwanted modulations. You can manually create an "Init" patch by maximizing the sawtooth wave, setting resonance and noise to zero, and saving it to a specific memory slot (like tone 88) for quick recall.
Here is the reality check: There is for the SH-01A. The processor (Qualcomm MSM7200A) lacks enough RAM (64MB) and the bootloader is cryptographically locked. However, advanced users have created "hybrid patches" that replace the GUI resource files. One prolific developer, known only as "ke-tai-2009," released a patch in 2021 that replaces the DoCoMo i-mode menu with a minimalist monochrome launcher. This is the closest you will get to a custom ROM.
: Start with a "clean slate" to avoid unwanted modulations. You can manually create an "Init" patch by maximizing the sawtooth wave, setting resonance and noise to zero, and saving it to a specific memory slot (like tone 88) for quick recall.
Here is the reality check: There is for the SH-01A. The processor (Qualcomm MSM7200A) lacks enough RAM (64MB) and the bootloader is cryptographically locked. However, advanced users have created "hybrid patches" that replace the GUI resource files. One prolific developer, known only as "ke-tai-2009," released a patch in 2021 that replaces the DoCoMo i-mode menu with a minimalist monochrome launcher. This is the closest you will get to a custom ROM.