Chosen Solution
Hello, I was removing the battery connector from my iPhone 5c but instead using a plastic pry I accidentally used a metallic one. It sparkled and phone died right away. I think I did a short circuit between the battery connector and the metal shield beside it. Now my phone is dead and wont power on. iTunes doesn’t recognize it and battery is charged (I measure it with multimeter and its about 4,14V). I want to know how to get started by testing the components to find the damaged ones and replace them myself. Is there any idea? Thank you! Update (02/16/2017) I took a better look and seems a component is missing between the connector and the shield, it is C22. Take a look at the image: http://imgur.com/a/582qi
What does this capacitor do? In the schematic is 56PF connected to PP_BATT_VCC, is it a filter to the main power bus? if yes, could it be the problem?
You will need to search for and download the schematics for the iPhone 5C. Then you can start probing for PP_BATT_VCC and PP_VCC_MAIN. Check to see if they are shorted to ground as those are the main voltage rails. You will also want to check the components near the battery connector. You may have blown one or knocked it off the pcb. You will need a multimeter to do this and fairly sharp probes, otherwise you may create more shorts. The component density is very high and the component size is very small. If you are uncomfortable doing this, then you should look for a micro-soldering repair shop to do this for you.
