iPhone 5S stuck on logo
my iPhone 5s was working fine until I put it on charger in car and instead charging it went off. It got stuck on battery logo with lightning cable showing on screen regardless on what charger I put it on. I tried different cables, wall chargers etc with no luck.
Few days later, I tried to change battery and charging outlet, again with no luck.
Finally I have took logic board out and put it into another iPhone 5s case with all remaining parts from the 100% working iPhone. As a result, I am getting boot loop or iphone is stuck on logo.
I am able to turn it off by power+home button, however if it's connected by cable it will not turn off and just tries to boot again. Also, when it's off and I connect it by cable to PC it will start itself and again to boot loop / logo stuck, but PC does not recognise the device.
I tried DFU but assuming the cable supposed to be pluged in, I am not able to turn off the phone while cable is connected. It start itself and loops.
Any thoughts please?
Is this a good question?