iPhone Randomly shutdowns after battery replacement.
I replaced my iPhone battery at a third-party service center, and since then the phone randomly shutdowns at any percentage (100%, 80%, 50%, 20%), It once shutdown when plugged in to the charger!.
It shutdown suddenly(suddenly goes black) and also won't turn on again unless plugged to the charger.
I returned to the service center and they had no clue but they did replace my battery with a new one once more. The battery loadcycles are 1, and it's wear level is 0%.
Also the date and clock are preserved after turning the device on again(they don't reset).
What could be the cause of this ?
Is this a good question?