This is happening more and more often. After I’ve shot some video, as soon as I hit “Done” the phone will suddenly shut off completely, and I can’t get it back on for at least 20 minutes. When I press the power button it says that it needs to be charged, even if I had a fully charged battery before it crashed. When I finally can get the phone back on it says the battery life is fine, and I have my video- it acts like nothing happened! Phone is fully updated, and otherwise working fine.