I know your thread title is 'for techies only' but that sounds like you need @aguero93:20 s patented advice more than anyone elses. It sounds like it's physically knackered and no amount of clever software can get around that.
I'm guessing it wasn't working before you got your hands on it?
correct, it just looped on safemode menu but at that point I thought it was just a corrupt mbr
and I agree there will be no software to repair a drive as knackered as this one