Thanks @rendal! It's exactly what I'm looking for. I want to fix it in the firmware. There is any place with instructions about how to do it?\nYes, there is a place with instructions on how to do this. For example here ( How to modify Firmware file | GeekDoing ). The languages are set in the firmware, for example, here ( Firmware 220.127.116.11 | "STOCK" (CN, ZH, EN, ES, RU, KO, FR, DE, ID, PL, IT, JA, TH, AR, VI, PT, NL, TR, UK) | GeekDoing ). Compare hexadecimal files to find out where the language is changing. Newer firmware versions are always newly compiled, ie the addresses of the instructions change and also the location of the functions in the given HEX file. This tool can also help you here ( MB3Editor - Translations Alpha Testing | GeekDoing ), which can automate the given modifications of the HEX file, regardless of the firmware version.