How to fix a Redmi 13 C display

@surenrodrigo you are not telling us how broken it is. I assume it is where you can't see. In that case the only thing you can d is to replace the display. Time to open it up and work on it. iFixit does not yet have a specific guide for this. Use something like this video to replace it. Replacement screens are readily available at many online places

While you work on your phone, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That will help the next person that has a device with the same issues as you do. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.