iPhone 5s stuck in recovery mode

Hello,

I have an iPhone 5s, not jailbroken, iOS 10.2,

It was stuck in a loop of restarting so after checking some results online I did an update & restore through iTunes but it didn't help.

I'm getting errors 9, 14 and 2005 each at a time, also it's disconnecting when it's about 50% of the recovery process.

Now it's stuck in the recovery mode and neither updating nor restoring is working!

I tried everything I found on the internet to exit the recovery mode but none of them worked, it will go back into recovery mode the moment it goes on.

EDIT: I've already tried 3 different USB cables, 2 PCs and Mac, all the same.

Any help will be appreciated.