Sorry, but, there are some inconsistencies in your statements that makes it hard to understand what is happening:
You seem to be saying it doesn't react to touch on the home screen, but, you also seem to have managed to get to the Device Information screen to try and do a factory reset. Which is it? Do you meant that opening books doesn't work but other things do?
The other issue is that you are saying it is doing a boot loop, but, you can also connect to the device to a PC and access the books on the device. Again, that seems to be inconsistent. A reboot loop would imply it reboots continuously with you doing something.
Is it actually only rebooting after disconnecting from the device? Or will it reboot after a clean startup?
Does it reboot if you do not do anything? That is, if you don't touch the screen, does it reboot after a little while? Or do you have to actually try to use the device before it reboots?
You could try to remove all the books from the device and see what happens. It might be something in the processing of the books that causes the problem. If it is happening automatically on the home screen, it could be the process generating the cover images used on the home screen. Removing all the books could eliminate this.
But, you should probably do a factory reset using the manual process. The instructions are on
https://help.kobo.com/hc/en-us/artic...or-Kobo-Elipsa.