iPhone 4s cannot restore

Something really weird happened with my iPhone 4s last day. It was running iOS 6.1.3 without any errors. I connected it to my Windows 11 PC to make a back-up of it until I noticed something weird: it turned off randomly. I connected it to the PC and it connected in DFU. I tried to reboot it. It went back into DFU mode. After some restarts, iOS 6.1.3 booted well. But after some minutes, it went again into DFU mode randomly. Tried to reboot it. Nothing. It’s like iOS 6.1.3 was never there. No battery icon when I connected a charger, no recovery mode icon. Just DFU. I tried to reset it and update to 9.3.5 via iTunes. It gets stuck to the Apple logo and the gray blank bar. I thought it had problems with USB 3.0 ports. I have used a 2006 Windows XP laptop with Win Vista. Still without success. I’ve tried third party apps to reset it. It just gets to the point where they need to receive information from the phone. Also, its UDID is just a long line of f’s. I gave up. I’m kind of confused: it was working flawlessly until now. I took a look at the motherboard: nothing wrong. Is this a hardware problem or is about the cable or other thing?

Picture of iPhone 4s

The third party program and its problem