Requesting Firmware for XL4005 step-down module with display (mcu stm8s103f3p)

[nour]

I have one of those buck converter modules with V/A display and until recently, the display module stopped working, after investigation, I found that the display onboard mcu was burnout and I have a replacement but I of course do not have the firmware.
Does anyone have the firmware for this module or have the module and was able to get the firmware binary from the mcu ?

It looks exactly like this one
https://www.karosium.com/2015/10/random-teardowns-xl4005-5a-step-down.html#comment-form
The mcu is stm8s103f3p!