Chosen Solution
Hi a friend of mine told me if i can have a look into his iphone 5s, the phone have had a cracked screen but was working and just before he gave it to me died and it never turned on again. I have tried re starting, dfu, disconnect the battery, i have tested the voltage of the battery and it was 0v, I replaced the battery for a new one no change whatsoever. It could be the motherboard?
Hi, more than likely Tristar/U2 IC chip issue, if a cheap cable has been used this is more than likely your problem, and requires micro soldering. No power with new battery could be PMIC (power management)
