iphone 6s short in pp_cpu and pp_gpu - GSM-Forum

manubali · 11-24-2017, 00:28

i have an iphone 6s that have short in pp_gpu and pp_cpu, and when i connect it to power supply, the pmu gets hot. now i have encountered this issue before and short does not go away after removing pmu, so i don't want to remove it.
is there any other way to check what exactly wrong with it?
phone have no water damage.

manubali · 11-24-2017, 00:43

just checked now, its pp_vcc_main line is also shorted

ninos22 · 11-24-2017, 16:33

PP_GPU & CPU its low resistance rails, so maybe not shorted. Check and compare in diode mode.

VVC_MAIN short you need to find which part is heating.

Good luck.

valerfankam · 11-25-2017, 02:13

check it with power supply 5A very good to find shiort ic or cap

11-24-2017, 00:28	#1 (permalink)
manubali Freak Poster Join Date: Feb 2015 Location: new zealand Posts: 107 Member: 2350837 Status: Offline Thanks Meter: 8	iphone 6s short in pp_cpu and pp_gpu i have an iphone 6s that have short in pp_gpu and pp_cpu, and when i connect it to power supply, the pmu gets hot. now i have encountered this issue before and short does not go away after removing pmu, so i don't want to remove it. is there any other way to check what exactly wrong with it? phone have no water damage.

11-24-2017, 00:43	#2 (permalink)
manubali Freak Poster Join Date: Feb 2015 Location: new zealand Posts: 107 Member: 2350837 Status: Offline Thanks Meter: 8	just checked now, its pp_vcc_main line is also shorted

11-24-2017, 16:33	#3 (permalink)
ninos22 Freak Poster Join Date: Mar 2013 Location: Greece Age: 35 Posts: 425 Member: 1903358 Status: Offline Thanks Meter: 146	PP_GPU & CPU its low resistance rails, so maybe not shorted. Check and compare in diode mode. VVC_MAIN short you need to find which part is heating. Good luck.

11-25-2017, 02:13	#4 (permalink)
valerfankam Crazy Poster Join Date: Jul 2014 Posts: 52 Member: 2216247 Status: Offline Thanks Meter: 6	check it with power supply 5A very good to find shiort ic or cap