Help needed: Change language on Japanese version Sony RX100 M7

Hello everyone,

I purchased a Japanese model of the Sony RX100 M7 (DSC-RX100M7) and found that the menu language is locked to Japanese.

I would like to switch the menu language to English (or other languages) but have been unable to do so.

Here is what I have already tried:

- Installed the “OpenMemories-Tweak” app by ma1co and attempted the “Unlock all languages” option, but the tool reported “unsupported” / did not detect the model.

- Reviewed GitHub issue #538 on Sony-PMCA-RE, which shows some success with RX100 M7 but mentions bugs. :contentReference[oaicite:9]{index=9}

- Confirmed that the camera’s firmware is version [insert firmware version] (if you have it)

- Used a PC with Windows 11, tried USB Mass Storage mode, Zadig + libusbK driver, but still stuck at “unknown device”.

My questions:

1. Has anyone successfully unlocked the language menu on the Japanese version RX100 M7? If yes, which tool version and precise steps did you use (Windows / Linux / macOS)?

2. If RX100 M7 is not supported by the current tools, is there a known workaround or newer method?

3. If I purchase a Mac (or use a Mac for the process), does anyone confirm that the tool works reliably on macOS for this model?

4. Are there any risks or precautions specific to RX100 M7 when performing the language unlock (e.g., bricking, firmware version rollback, loss of features)?

Thank you in advance for your help and sharing your experience.

Best regards,