I have a problem with a 5s. the phone turns on, appears the apple and then turns off.
sometimes absorbs 0.25A and fading, sometimes absorbs 2A and fading.
when I connect the battery and USB power manager becomes warm.
I checked:pp3v0_sdram pp1v8_sdram pp1v2_sdram. It is ok.
the line pp1v1_cpu pp1v1_gpu is short. the resistance to ground is 0ohm but when the phone is on and I measure the voltage it is 0,46v (pp1v1_cpu pp1v1_gpu)
anyone has any advice for me? thanks in advance