If you compile by yourself it will allow you to generate an ELF file, that you can use following this quick explanation to have more clue on what is happening
Thank you for your answer. Although I currently do not have the ability to compile firmware; But still thank you for your answer; I will try my best to wait and see if there are any technical experts who can help solve this problem
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
If you compile by yourself it will allow you to generate an ELF file, that you can use following this quick explanation to have more clue on what is happening