iPhone 5s Completely dead - won't charge or turn on
Hello, I've got a customers iPhone 5 bought in for a screen & battery replacement which won't turn on at all. It wouldn't turn on even BEFORE I attempted to repair anything.
She states that it was working with poor battery life before she gave it to me. I trust her.
I did the usual, Hard Reset, Removing & Replacing the battery, trying with a different screen. However the phone doesn't respond to anything, I don't feel any vibrations with the mute switch.
Usually when it comes to this I remove the battery and plug in the phone, this usually flashes the Apple logo, however it won't work this time.
Is removing the battery a valid test? Could replacing the battery still work? ( I don't have stock at the moment, it's coming next week)
Any other ideas?