You can also follow the steps given in this tutorial to fix iphone 5s in dfu mode

dfu iphone 5s reset https://devicereset.online/2021/02/01/df...

If the software is corrupted there is only one way to make it better that is hard reset.

You can do a hard reset easily, just take care of data first.

Just follow the instruction in this article. I found it really helpful.

https://devicereset.online/2021/02/07/ho...