iPhone Data Recovery from a Dead Logic Board
An iPhone 6 with no visible damage draws zero amps when connected to power. Over 32 minutes, we use ZXW schematics to trace the PP_VCC_MAIN power rail and confirm a dead short. Then we systematically remove decoupling capacitors until the short clears and the phone boots.
Finding the Short on PP_VCC_MAIN
Problem is, dozens of components sit on PP_VCC_MAIN. Any one of them could be the culprit. Instead of guessing, we start with the decoupling capacitors at the top of the board. These small ceramic caps filter power rail noise.
Removing Capacitors One at a Time
We remove each suspect capacitor with tweezers or a soldering iron, then measure the rail again. When the short disappears after removing a specific cap, that is the failed component.
Booting the Phone to Extract Data
Once the short clears, we reconnect the battery and monitor current draw. The phone begins booting iOS. All user data on the NAND chip is encrypted with a key tied to this specific CPU. Desoldering the NAND and reading it on another board does not work; the decryption keys will not match. The phone must boot, reach the passcode screen, and authenticate.
The customer gives us the passcode during the recovery. Without it, the data stays locked. That is Apple's encryption working as designed.
Dead iPhone, Irreplaceable Photos?
A phone that draws zero amps is not necessarily a phone with zero data. We trace shorts, swap caps, and get dead iPhones booting again for data extraction. No data, no fee.