I have an iPhone 6 that came in from another repair shop. The backstory is that "as they were replacing a battery while tired and a screwdriver slipped while replacing the battery connector cover, there was a spark, and now only the CPU gets hot". The phone looked perfectly normal with visual inspection no red water indicators, no big gouges in the solder mask. I removed all the shields in hopes of seeing a nice burnt component that would be the trail marker for the journey. Sadly this board keeps it's secrets closely guarded. With the shields of I first checked to see if VCC Main was shorted at the battery connector, no luck. When I connect the phone to the DCPS, and prompt to boot I get a solid 0.036 Amp draw at 5V. I have a baseline draw of 0.006 for the DC Power Cable "Octopus-thing" Eventually after 2 mins or so the CPU will get warm but not burn your fingers hot. I get 0.89V on PP_CPU and 273 Ohm resistance to ground on that rail as well (0.192V DM)
I am unfortunately worried that the CPU got zapped and this board is long for this world but I am hoping that my assumption is just a novices flawed logic! Thank you all in advance!
I am unfortunately worried that the CPU got zapped and this board is long for this world but I am hoping that my assumption is just a novices flawed logic! Thank you all in advance!
Comment